List of birds of Guam
Encyclopedia
This is a list of the bird species recorded in Guam. The avifauna of Guam
includes a total of ninety five species, of which two are endemic
, two have been introduced
by humans, and one is rare or accidental. Four species listed are extirpated
in Guam and are not included in the species count. Six species are globally threatened.
This list's taxonomic
treatment (designation and sequence of orders, families, and species) and nomenclature (common and scientific names) follow the conventions of Clements
's 5th edition. The family accounts at the beginning of each heading reflects this taxonomy, as do the species counts found in each family account. Introduced and accidental species are included in the total counts for Guam.
The following tags have been used to highlight certain relevant categories. Not all species fall into one of these categories. Those that do not are commonly occurring, native species:
Family: Procellariidae
The procellariids are the main group of medium-sized 'true petrels', characterised by united nostrils with a medium septum, and a long outer functional primary. There are 75 species worldwide and 4 species which occur in Guam.
Family: Hydrobatidae
The storm-petrel
s are relatives of the petrel
s, and are the smallest of sea-birds. They feed on plankton
ic crustaceans and small fish picked from the surface, typically while hovering. The flight is fluttering and sometimes bat
-like. There are 21 species worldwide and 2 species which occur in Guam.
Family: Phaethontidae
Tropicbird
s are slender white birds of tropical oceans, with exceptionally long central tail feathers. Their heads and long wings have black markings. There are 3 species worldwide and 1 species which occurs in Guam.
Family: Sulidae
The sulids comprise the gannet
s and boobies
. Both groups comprise medium-to-large coastal sea-birds that plunge-dive for fish. There are 9 species worldwide and 3 species which occur in Guam.
Family: Fregatidae
Frigatebird
s are large sea-birds usually found over tropical oceans. They are large, black and white or completely black, with long wings and deeply-forked tails. The males have inflatable coloured throat pouches. They do not swim or walk, and cannot take off from a flat surface. Having the largest wingspan to body weight ratio of any bird, they are essentially aerial, able to stay aloft for more than a week. There are 5 species worldwide and 2 species which occur in Guam.
Family: Ardeidae
The family Ardeidae contains the bittern
s, heron
s and egret
s. Herons and egrets are medium to large sized wading birds with long necks and legs. Bitterns tend to be shorter necked and more wary. Unlike other long-necked birds suck as storks, ibises and spoonbills, members of Ardeidae fly with their necks retracted. There are 61 species worldwide and 5 species which occur in Guam.
Family: Anatidae
The family Anatidae includes the duck
s and most duck-like waterfowl, such as geese
and swan
s. These are birds that are modified for an aquatic existence with webbed feet, flattened bills and feathers that are excellent at shedding water due to an oily coating. There are 131 species worldwide and 8 species which occur in Guam.
Family: Pandionidae
The Pandionidae family contains only one species, the Osprey. The Osprey is a medium large raptor
which is a specialist fish-eater with a worldwide distribution.
Family: Accipitridae
Accipitridae is a family of birds of prey and include hawk
s, eagle
s, kites
, harriers
and Old World vultures. These birds have powerful hooked beaks for tearing flesh from their prey, strong legs, powerful talons, and keen eyesight. There are 233 species worldwide and 2 species which occur in Guam.
Family: Falconidae
Falconidae is a family of diurnal birds of prey. They differ from hawks, eagles, and kites in that they kill with their beaks instead of their feet. There are 62 species worldwide and 1 species which occurs in
Family: Megapodiidae
The Megapodiidae are stocky, medium-large chicken-like birds with small heads and large feet. All but the Malleefowl
occupy jungle habitats, and most have brown or black colouring. There are 21 species worldwide and 1 species which occurs in Guam.
Family: Phasianidae
The Phasianidae are a family of terrestrial birds which consists of quail
s, partridge
s, snowcock
s, francolin
s, spurfowls, tragopan
s, monal
s, pheasant
s, peafowl
s and jungle fowls. In general, they are plump (although they may vary in size) and have broad, relatively short wings. There are 156 species worldwide and 2 species which occur in Guam.
Family: Rallidae
Rallidae is a large family of small to medium-sized birds which includes the rails, crakes, coot
s, and gallinule
s. Typically they inhabit dense vegetation in damp environments near lakes, swamps, or rivers. In general they are shy and secretive birds, difficult to observe. Most species have strong legs, and have long toes which are well adapted to soft, uneven surfaces. They tend to have short, rounded wings and be weak fliers. There are 143 species worldwide and 4 species which occur in Guam.
Family: Haematopodidae
The oystercatcher
s are large and noisy plover
-like birds, with strong bills used for smashing or prising open molluscs. There are 11 species worldwide and 1 species which occurs in Guam.
Family: Charadriidae
The family Charadriidae includes the plover
s, dotterels, and lapwing
s. They are small to medium-sized birds with compact bodies, short, thick necks and long, usually pointed, wings. They are found in open country worldwide, mostly in habitats near water, although there are some exceptions. There are 66 species worldwide and 6 species which occur in Guam.
Family: Scolopacidae
The Scolopacidae are a large diverse family of small to medium sized shorebirds including the sandpipers, curlew
s, godwit
s, shanks
, tattler
s, woodcock
s, snipe
s, dowitcher
s and phalarope
s. The majority of species eat small invertebrates picked out of the mud or soil. Variation in length of legs and bills enable different species to feed in the same habitat, particularly on the coast, without direct competition for food. There are 89 species worldwide and 23 species which occur in Guam.
Family: Laridae
Laridae is a family of medium to large birds seabirds and includes gull
s and kittiwake
s. They are typically grey or white, often with black markings on the head or wings. They have stout, longish bills and webbed feet. There are 55 species worldwide and 1 species which occurs in Guam.
Family: Sternidae
Tern
s are a group of generally general medium to large sea-birds typically with grey or white plumage, often with black markings on the head. Most terns hunt fish by diving but some pick insects off the surface of fresh water. Terns are generally long-lived birds, with several species now known to live in excess of 25 to 30 years. There are 44 species worldwide and 8 species which occur in Guam.
Family: Columbidae
Pigeons and dove
s are stout-bodied birds with short necks and short slender bills with a fleshy cere
. There are 308 species worldwide and 4 species which occur in Guam.
Family: Strigidae
Typical owl
s are small to large solitary nocturnal birds of prey. They have large forward-facing eyes and ears, a hawk-like beak, and a conspicuous circle of feathers around each eye called a facial disk. There are 195 species worldwide and 1 species which occurs in Guam.
Family: Apodidae
Swift
s are small aerial birds, spending the majority of their lives flying. These birds have very short legs and never settle voluntarily on the ground, perching instead only on vertical surfaces. Many swifts have long swept-back wings that resemble a crescent or a boomerang. There are 98 species worldwide and 1 species which occurs in Guam.
Family: Alcedinidae
Kingfishers are medium-sized birds with large heads, long pointed bills, short legs, and stubby tails. There are 93 species worldwide and 2 species which occur in Guam.
Family: Hirundinidae
The Hirundinidae family is a group of passerines characterized by their adaptation to aerial feeding. Their adaptations include a slender streamlined body, long pointed wings and short bills with wide gape. The feet are designed for perching rather than walking, and the front toes are partially joined at the base. There are 75 species worldwide and 1 species which occurs in Guam.
Family: Motacillidae
The Motacillidae are a family of small passerine birds with medium to long tails. They include the wagtails, longclaws and pipits. They are slender, ground feeding insectivores of open country. There are 54 species worldwide and 1 species which occurs in Guam.
Family: Sylviidae
The family Sylviidae is a group of small insectivorous passerine birds. The Sylviidae mainly occur as breeding species, as the common name implies, in Europe, Asia and, to a lesser extent Africa. Most are of generally undistinguished appearance, but many have distinctive songs. There are 291 species worldwide and 1 species which occurs in Guam.
Family: Rhipiduridae
The Fantails are small insectivorous birds which are specialist aerial feeders. There are 44 species worldwide and 2 species which occur in Guam.
Family: Monarchidae
The monarch flycatchers are small to medium-sized insectivorous passerines, which hunt by flycatching. There are 99 species worldwide and 1 species which occurs in Guam.
Family: Zosteropidae
The white-eyes are small and are mostly of undistinguished appearance, the plumage above being generally either some dull color like greenish olive, but some species have a white or bright yellow throat, breast or lower parts, and several have buff flanks. As their name suggests many species have a white ring around the eyes. There are 96 species worldwide and 1 species which occurs in Guam.
Family: Meliphagidae
The honeyeaters are a large and diverse family of small to medium-sized birds most common in Australia and New Guinea. They are nectar feeders and closely resemble other nectar-feeding passerines. There are 174 species worldwide and 1 species which occurs in Guam.
Family: Dicruridae
The drongos are mostly are black or dark grey in colour, sometimes with metallic tints. They have long forked tails, and some Asian species have elaborate tail decorations. They have short legs and sit very upright whilst perched, like a shrike. They flycatch or take prey from the ground. There are 24 species worldwide and 1 species which occurs in Guam.
Family: Corvidae
The Corvidae family includes crow
s, raven
s, jay
s, chough
s, magpie
s, treepie
s, nutcracker
s, and ground jay
s. Corvids are above average in size for the bird order Passeriformes. Some of the larger species show high levels of learning behavior. There are 120 species worldwide and 1 species which occurs in Guam.
Family: Sturnidae
Starlings are small to medium-sized passerine birds. Their flight is strong and direct, and they are very gregarious. Their preferred habitat is fairly open country. They eat insects and fruit. Plumage is typically dark with a metallic sheen. There are 125 species worldwide and 1 species which occurs in Guam.
Family: Passeridae
Sparrow
s are small passerine birds. In general, sparrows tend to be small, plump, brown or grey birds with short tails and short powerful beaks. Sparrows are seed-eaters, and they also consume small insects. There are 35 species worldwide and 1 species which occurs in Guam.
Guam
Guam is an organized, unincorporated territory of the United States located in the western Pacific Ocean. It is one of five U.S. territories with an established civilian government. Guam is listed as one of 16 Non-Self-Governing Territories by the Special Committee on Decolonization of the United...
includes a total of ninety five species, of which two are endemic
Endemism in birds
An endemic bird area is a region of the world that contains two or more restricted-range species, while a "secondary area" contains one or more restricted-range species. Both terms were devised by Birdlife International....
, two have been introduced
Introduced species
An introduced species — or neozoon, alien, exotic, non-indigenous, or non-native species, or simply an introduction, is a species living outside its indigenous or native distributional range, and has arrived in an ecosystem or plant community by human activity, either deliberate or accidental...
by humans, and one is rare or accidental. Four species listed are extirpated
Local extinction
Local extinction, also known as extirpation, is the condition of a species which ceases to exist in the chosen geographic area of study, though it still exists elsewhere...
in Guam and are not included in the species count. Six species are globally threatened.
This list's taxonomic
Taxonomy
Taxonomy is the science of identifying and naming species, and arranging them into a classification. The field of taxonomy, sometimes referred to as "biological taxonomy", revolves around the description and use of taxonomic units, known as taxa...
treatment (designation and sequence of orders, families, and species) and nomenclature (common and scientific names) follow the conventions of Clements
James Clements
Dr. James Franklin Clements was an ornithologist, author and very successful businessman. He was born in New York....
's 5th edition. The family accounts at the beginning of each heading reflects this taxonomy, as do the species counts found in each family account. Introduced and accidental species are included in the total counts for Guam.
The following tags have been used to highlight certain relevant categories. Not all species fall into one of these categories. Those that do not are commonly occurring, native species:
- (A) Accidental A species that rarely or accidentally occurs in Guam.
- (*) Endemic A species either entirely confined to Guam in its natural distribution, or a species whose breeding range is entirely confined to Guam.
- (E) Extinct A recent member of the avifauna that no longer exists.
- (EW) Extinct in the Wild These species only exist in captive breeding programs, with no documentation of wild birds found in native habitats.
- (I) Introduced A species introduced to Guam as a consequence, direct or indirect, of human actions.
- (Ex) Extirpated A species that no longer occurs in Guam populations exist nowhere.
| Table of contents |
|---|
Non-passerines: Shearwaters and Petrels . Storm-Petrels . Tropicbirds . Boobies and Gannets . Frigatebirds . Bitterns, Herons and Egrets . Ducks, Geese and Swans . Osprey . Hawks, Kites and Eagles . Caracaras and Falcons . Megapodes . Pheasants and Partridges . Rails, Crakes, Gallinules, and Coots . Oystercatchers . Plovers and Lapwings . Sandpipers and allies . Gulls . Terns . Pigeons and Doves . Typical owls . Swifts . Kingfishers . |
Passerines: Swallows and Martins . Wagtails and Pipits . Old World warblers . Fantails . Monarch flycatchers . White-eyes . Honeyeaters . Drongos . Crows, Jays, Ravens and Magpies . Starlings . Sparrows . |
See also References |
Shearwaters and petrels
Order: ProcellariiformesProcellariiformes
Procellariiformes is an order of seabirds that comprises four families: the albatrosses, petrels and shearwaters, storm petrels, and diving petrels...
Family: Procellariidae
Procellariidae
The family Procellariidae is a group of seabirds that comprises the fulmarine petrels, the gadfly petrels, the prions, and the shearwaters. This family is part of the bird order Procellariiformes , which also includes the albatrosses, the storm-petrels, and the diving petrels.The procellariids are...
The procellariids are the main group of medium-sized 'true petrels', characterised by united nostrils with a medium septum, and a long outer functional primary. There are 75 species worldwide and 4 species which occur in Guam.
- Wedge-tailed ShearwaterWedge-tailed ShearwaterThe Wedge-tailed Shearwater, Puffinus pacificus is a medium-large shearwater in the seabird family Procellariidae. It is one of the shearwater species that is sometimes referred to as a Muttonbird, like the Sooty Shearwater of New Zealand and the Short-tailed Shearwater of Australia...
Puffinus pacificus - Short-tailed ShearwaterShort-tailed ShearwaterThe Short-tailed Shearwater or Slender-billed Shearwater , also called Yolla or Moonbird, and commonly known as the muttonbird in Australia, is the most abundant seabird species in Australian waters, and is one of the few Australian native birds in which the chicks are commercially harvested...
Puffinus tenuirostris - Townsend's ShearwaterTownsend's ShearwaterTownsend's Shearwater, Puffinus auricularis, is a rare seabird of the tropics from the family Procellariidae.Its relationships are unresolved. Its closest relatives are probably, but not certainly, the Hawaiian Shearwater and possibly the Manx Shearwater...
Puffinus auricularis - Audubon's ShearwaterAudubon's ShearwaterAudubon's Shearwater, Puffinus lherminieri, is a common tropical seabird from the family Procellariidae. Sometimes called Dusky-backed Shearwater, the scientific name of this species commemorates the French naturalist Félix Louis L'Herminier....
Puffinus lherminieri
Storm-Petrels
Order: ProcellariiformesProcellariiformes
Procellariiformes is an order of seabirds that comprises four families: the albatrosses, petrels and shearwaters, storm petrels, and diving petrels...
Family: Hydrobatidae
The storm-petrel
Storm-petrel
Storm petrels are seabirds in the family Hydrobatidae, part of the order Procellariiformes. These smallest of seabirds feed on planktonic crustaceans and small fish picked from the surface, typically while hovering. The flight is fluttering and sometimes bat-like.Storm petrels have a cosmopolitan...
s are relatives of the petrel
Petrel
Petrels are tube-nosed seabirds in the bird order Procellariiformes. The common name does not indicate relationship beyond that point, as "petrels" occur in three of the four families within that group...
s, and are the smallest of sea-birds. They feed on plankton
Plankton
Plankton are any drifting organisms that inhabit the pelagic zone of oceans, seas, or bodies of fresh water. That is, plankton are defined by their ecological niche rather than phylogenetic or taxonomic classification...
ic crustaceans and small fish picked from the surface, typically while hovering. The flight is fluttering and sometimes bat
Bat
Bats are mammals of the order Chiroptera "hand" and pteron "wing") whose forelimbs form webbed wings, making them the only mammals naturally capable of true and sustained flight. By contrast, other mammals said to fly, such as flying squirrels, gliding possums, and colugos, glide rather than fly,...
-like. There are 21 species worldwide and 2 species which occur in Guam.
- Leach's Storm-PetrelLeach's Storm-petrelThe Leach's Storm Petrel or Leach's Petrel is a small seabird of the tubenose family. It is named after the British zoologist William Elford Leach....
Oceanodroma leucorhoa - Matsudaira's Storm-PetrelMatsudaira's Storm-petrelMatsudaira's Storm Petrel is a species of seabird in the Hydrobatidae family.It breeds solely in the Volcano Islands in the north-west Pacific Ocean, and winters in the Indian Ocean. Its status is insufficiently known....
Oceanodroma matsudairae
Tropicbirds
Order: PelecaniformesPelecaniformes
The Pelecaniformes is a order of medium-sized and large waterbirds found worldwide. As traditionally—but erroneously—defined, they encompass all birds that have feet with all four toes webbed. Hence, they were formerly also known by such names as totipalmates or steganopodes...
Family: Phaethontidae
Tropicbird
Tropicbird
Tropicbirds are a family, Phaethontidae, of tropical pelagic seabirds now classified in their own order Phaethontiformes. Their relationship to other living birds is unclear, and they appear to have no close relatives. There are three species in one genus, Phaethon...
s are slender white birds of tropical oceans, with exceptionally long central tail feathers. Their heads and long wings have black markings. There are 3 species worldwide and 1 species which occurs in Guam.
- White-tailed TropicbirdWhite-tailed TropicbirdThe White-tailed Tropicbird Phaethon lepturus, is a tropicbird, smallest of three closely related seabirds of the tropical oceans and smallest member of the order Phaethontiformes. It occurs in the tropical Atlantic, western Pacific and Indian Oceans...
Phaethon lepturus
Boobies and gannets
Order: PelecaniformesPelecaniformes
The Pelecaniformes is a order of medium-sized and large waterbirds found worldwide. As traditionally—but erroneously—defined, they encompass all birds that have feet with all four toes webbed. Hence, they were formerly also known by such names as totipalmates or steganopodes...
Family: Sulidae
Sulidae
The bird family Sulidae comprises the gannets and boobies. Collectively called sulidas, they are medium-large coastal seabirds that plunge-dive for fish and similar prey. The ten species in this family are often considered congeneric in older sources, placing all in the genus Sula...
The sulids comprise the gannet
Gannet
Gannets are seabirds comprising the genus Morus, in the family Sulidae, closely related to the boobies.The gannets are large black and white birds with yellow heads. They have long pointed wings and long bills. Northern gannets are the largest seabirds in the North Atlantic, with a wingspan of up...
s and boobies
Booby
A booby is a seabird in the genus Sula, part of the Sulidae family. Boobies are closely related to the gannets , which were formerly included in Sula.-Description:...
. Both groups comprise medium-to-large coastal sea-birds that plunge-dive for fish. There are 9 species worldwide and 3 species which occur in Guam.
- Masked BoobyMasked BoobyThe Masked Booby, Sula dactylatra, is a large seabird of the booby family, Sulidae. This species breeds on islands in tropical oceans, except in the eastern Atlantic; in the eastern Pacific it is replaced by the Nazca Booby, Sula granti, which was formerly regarded as a subspecies of Masked Booby...
Sula dactylatra - Red-footed BoobyRed-footed BoobyThe Red-footed Booby, Sula sula, is a large seabird of the booby family, Sulidae. As suggested by the name, adults always have red feet, but the colour of the plumage varies. They are powerful and agile fliers, but they are clumsy in takeoffs and landings...
Sula sula - Brown BoobyBrown BoobyThe Brown Booby is a large seabird of the booby family, Sulidae. The adult brown booby reaches about in length. Its head and upper body are covered in dark brown, with the remainder being a contrasting white. The juvenile form is gray-brown with darkening on the head, wings and tail...
Sula leucogaster
Frigatebirds
Order: PelecaniformesPelecaniformes
The Pelecaniformes is a order of medium-sized and large waterbirds found worldwide. As traditionally—but erroneously—defined, they encompass all birds that have feet with all four toes webbed. Hence, they were formerly also known by such names as totipalmates or steganopodes...
Family: Fregatidae
Frigatebird
Frigatebird
The frigatebirds are a family, Fregatidae, of seabirds. There are five species in the single genus Fregata. They are also sometimes called Man of War birds or Pirate birds. Since they are related to the pelicans, the term "frigate pelican" is also a name applied to them...
s are large sea-birds usually found over tropical oceans. They are large, black and white or completely black, with long wings and deeply-forked tails. The males have inflatable coloured throat pouches. They do not swim or walk, and cannot take off from a flat surface. Having the largest wingspan to body weight ratio of any bird, they are essentially aerial, able to stay aloft for more than a week. There are 5 species worldwide and 2 species which occur in Guam.
- Great FrigatebirdGreat FrigatebirdThe Great Frigatebird is a large dispersive seabird in the frigatebird family. Major nesting populations are found in the Pacific and Indian Oceans, as well as a population in the South Atlantic....
Fregata minor - Lesser FrigatebirdLesser FrigatebirdThe Lesser Frigatebird, Fregata ariel, is a species of frigatebird.It nests in Australia, among other locations.There is a single record from the Western Palearctic, from Eilat in the Gulf of Aqaba....
Fregata ariel
Bitterns, herons and egrets
Order: CiconiiformesCiconiiformes
Traditionally, the order Ciconiiformes has included a variety of large, long-legged wading birds with large bills: storks, herons, egrets, ibises, spoonbills, and several others. Ciconiiformes are known from the Late Eocene...
Family: Ardeidae
The family Ardeidae contains the bittern
Bittern
Bitterns are a classification of birds in the heron family, Ardeidae, a family of wading birds. Species named bitterns tend to be the shorter-necked, often more secretive members of this family...
s, heron
Heron
The herons are long-legged freshwater and coastal birds in the family Ardeidae. There are 64 recognised species in this family. Some are called "egrets" or "bitterns" instead of "heron"....
s and egret
Egret
An egret is any of several herons, most of which are white or buff, and several of which develop fine plumes during the breeding season. Many egrets are members of the genera Egretta or Ardea which contain other species named as herons rather than egrets...
s. Herons and egrets are medium to large sized wading birds with long necks and legs. Bitterns tend to be shorter necked and more wary. Unlike other long-necked birds suck as storks, ibises and spoonbills, members of Ardeidae fly with their necks retracted. There are 61 species worldwide and 5 species which occur in Guam.
- Intermediate EgretIntermediate EgretThe Intermediate Egret, Median Egret, or Yellow-billed Egret is a medium-sized heron. It is a resident breeder from east Africa across tropical southern Asia to Australia. It often nests in colonies with other herons, usually on platforms of sticks in trees or shrubs...
Egretta intermedia - Pacific Reef-Heron Egretta sacra
- Cattle EgretCattle EgretThe Cattle Egret is a cosmopolitan species of heron found in the tropics, subtropics and warm temperate zones. It is the only member of the monotypic genus Bubulcus, although some authorities regard its two subspecies as full species, the Western Cattle Egret and the Eastern Cattle Egret...
Bubulcus ibis - Yellow BitternYellow BitternThe Yellow Bittern is a small bittern. It is of Old World origins, breeding in much of the Indian Subcontinent, east to Japan and Indonesia. It is mainly resident, but some northern birds migrate short distances...
Ixobrychus sinensis - Black BitternBlack BitternThe Black Bittern, Ixobrychus flavicollis, is a bittern of Old World origin, breeding in tropical Asia from Pakistan, India and Sri Lanka east to China, Indonesia and Australia. It is mainly resident, but some northern birds migrate short distances....
Ixobrychus flavicollis
Ducks, geese and swans
Order: AnseriformesAnseriformes
The order Anseriformes contains about 150 living species of birds in three extant families: the Anhimidae , Anseranatidae , and the Anatidae, which includes over 140 species of waterfowl, among them the ducks, geese, and swans.All species in the order are highly adapted for an aquatic existence at...
Family: Anatidae
Anatidae
Anatidae is the biological family of birds that includes ducks, geese and swans. The family has a cosmopolitan distribution, occurring on all the world's continents except Antarctica and on most of the world's islands and island groups...
The family Anatidae includes the duck
Duck
Duck is the common name for a large number of species in the Anatidae family of birds, which also includes swans and geese. The ducks are divided among several subfamilies in the Anatidae family; they do not represent a monophyletic group but a form taxon, since swans and geese are not considered...
s and most duck-like waterfowl, such as geese
Goose
The word goose is the English name for a group of waterfowl, belonging to the family Anatidae. This family also includes swans, most of which are larger than true geese, and ducks, which are smaller....
and swan
Swan
Swans, genus Cygnus, are birds of the family Anatidae, which also includes geese and ducks. Swans are grouped with the closely related geese in the subfamily Anserinae where they form the tribe Cygnini. Sometimes, they are considered a distinct subfamily, Cygninae...
s. These are birds that are modified for an aquatic existence with webbed feet, flattened bills and feathers that are excellent at shedding water due to an oily coating. There are 131 species worldwide and 8 species which occur in Guam.
- Eurasian Wigeon Anas penelope
- American WigeonAmerican WigeonThe American Wigeon, also American Widgeon or Baldpate, is a species of wigeon in the dabbling duck genus Anas. If this is split up, all wigeons will go into their old genus Mareca again...
Anas americana (A) - MallardMallardThe Mallard , or Wild Duck , is a dabbling duck which breeds throughout the temperate and subtropical Americas, Europe, Asia, and North Africa, and has been introduced to New Zealand and Australia....
Anas platyrhynchos (Ex) - Northern PintailNorthern PintailThe Pintail or Northern Pintail is a widely occurring duck which breeds in the northern areas of Europe, Asia and North America. It is strongly migratory and winters south of its breeding range to the equator...
Anas acuta - GarganeyGarganeyThe Garganey is a small dabbling duck. It breeds in much of Europe and western Asia, but is strictly migratory, with the entire population moving to southern Africa, India Santragachi and Australasia in winter, where large flocks can occur. This species was first described by Linnaeus in 1758...
Anas querquedula - Northern ShovelerNorthern ShovelerThe Northern Shoveler , Northern Shoveller in British English, sometimes known simply as the Shoveler, is a common and widespread duck. It breeds in northern areas of Europe and Asia and across most of North America, and is a rare vagrant to Australia...
Anas clypeata - Common Pochard Aythya ferina
- Tufted DuckTufted DuckThe Tufted Duck, Aythya fuligula, is a medium-sized diving duck with a population of close to one million birds.- Description :The adult male is all black except for white flanks and a blue-grey bill. It has an obvious head tuft that gives the species its name.The adult female is brown with paler...
Aythya fuligula
Osprey
Order: FalconiformesFalconiformes
The order Falconiformes is a group of about 290 species of birds that comprises the diurnal birds of prey. Raptor classification is difficult and the order is treated in several ways.- Classification problems :...
Family: Pandionidae
The Pandionidae family contains only one species, the Osprey. The Osprey is a medium large raptor
Bird of prey
Birds of prey are birds that hunt for food primarily on the wing, using their keen senses, especially vision. They are defined as birds that primarily hunt vertebrates, including other birds. Their talons and beaks tend to be relatively large, powerful and adapted for tearing and/or piercing flesh....
which is a specialist fish-eater with a worldwide distribution.
- OspreyOspreyThe Osprey , sometimes known as the sea hawk or fish eagle, is a diurnal, fish-eating bird of prey. It is a large raptor, reaching more than in length and across the wings...
Pandion haliaetus
Hawks, kites and eagles
Order: FalconiformesFalconiformes
The order Falconiformes is a group of about 290 species of birds that comprises the diurnal birds of prey. Raptor classification is difficult and the order is treated in several ways.- Classification problems :...
Family: Accipitridae
Accipitridae
The Accipitridae, one of the two major families within the order Accipitriformes , are a family of small to large birds with strongly hooked bills and variable morphology based on diet. They feed on a range of prey items from insects to medium-sized mammals, with a number feeding on carrion and a...
Accipitridae is a family of birds of prey and include hawk
Hawk
The term hawk can be used in several ways:* In strict usage in Australia and Africa, to mean any of the species in the subfamily Accipitrinae, which comprises the genera Accipiter, Micronisus, Melierax, Urotriorchis and Megatriorchis. The large and widespread Accipiter genus includes goshawks,...
s, eagle
Eagle
Eagles are members of the bird family Accipitridae, and belong to several genera which are not necessarily closely related to each other. Most of the more than 60 species occur in Eurasia and Africa. Outside this area, just two species can be found in the United States and Canada, nine more in...
s, kites
Kite (bird)
Kites are raptors with long wings and weak legs which spend a great deal of time soaring. Most feed mainly on carrion but some take various amounts of live prey.They are birds of prey which, along with hawks and eagles, are from the family Accipitridae....
, harriers
Harrier (bird)
A harrier is any of the several species of diurnal hawks forming the Circinae sub-family of the Accipitridae family of birds of prey. Harriers characteristically hunt by flying low over open ground, feeding on small mammals, reptiles, or birds....
and Old World vultures. These birds have powerful hooked beaks for tearing flesh from their prey, strong legs, powerful talons, and keen eyesight. There are 233 species worldwide and 2 species which occur in Guam.
- Chinese GoshawkChinese GoshawkThe Chinese Sparrowhawk is a bird of prey in the family Accipitridae which also includes many other diurnal raptors such as eagles, buzzards and harriers. Also called Chinese goshawk....
Accipiter soloensis - Japanese SparrowhawkJapanese SparrowhawkThe Japanese Sparrowhawk is a bird of prey in the family Accipitridae which also includes many other diurnal raptors such as eagles, buzzards and harriers....
Accipiter gularis
Caracaras and falcons
Order: FalconiformesFalconiformes
The order Falconiformes is a group of about 290 species of birds that comprises the diurnal birds of prey. Raptor classification is difficult and the order is treated in several ways.- Classification problems :...
Family: Falconidae
Falconidae
The falcons and caracaras are around 60 species of diurnal birds of prey that make up the family Falconidae. The family is divided into two subfamiles, Polyborinae, which includes the caracaras and forest falcons, and Falconinae, the falcons, kestrels and falconets.-Description:Falcons and...
Falconidae is a family of diurnal birds of prey. They differ from hawks, eagles, and kites in that they kill with their beaks instead of their feet. There are 62 species worldwide and 1 species which occurs in
Megapodes
Order: GalliformesGalliformes
Galliformes are an order of heavy-bodied ground-feeding domestic or game bird, containing turkey, grouse, chicken, New and Old World Quail, ptarmigan, partridge, pheasant, and the Cracidae. Common names are gamefowl or gamebirds, landfowl, gallinaceous birds or galliforms...
Family: Megapodiidae
The Megapodiidae are stocky, medium-large chicken-like birds with small heads and large feet. All but the Malleefowl
Malleefowl
The Malleefowl is a stocky ground-dwelling Australian bird about the size of a domestic chicken...
occupy jungle habitats, and most have brown or black colouring. There are 21 species worldwide and 1 species which occurs in Guam.
- Micronesian ScrubfowlMicronesian ScrubfowlThe Micronesian Megapode or Micronesian Scrubfowl, Megapodius laperouse, is an endangered megapode which inhabits islands of the Western Pacific Ocean.-Description:...
Megapodius laperouse (Ex)
Pheasants and partridges
Order: GalliformesGalliformes
Galliformes are an order of heavy-bodied ground-feeding domestic or game bird, containing turkey, grouse, chicken, New and Old World Quail, ptarmigan, partridge, pheasant, and the Cracidae. Common names are gamefowl or gamebirds, landfowl, gallinaceous birds or galliforms...
Family: Phasianidae
Phasianidae
The Phasianidae is a family of birds which consists of the pheasants and partridges, including the junglefowl , Old World Quail, francolins, monals and peafowl. The family is a large one, and is occasionally broken up into two subfamilies, the Phasianinae, and the Perdicinae...
The Phasianidae are a family of terrestrial birds which consists of quail
Quail
Quail is a collective name for several genera of mid-sized birds generally considered in the order Galliformes. Old World quail are found in the family Phasianidae, while New World quail are found in the family Odontophoridae...
s, partridge
Partridge
Partridges are birds in the pheasant family, Phasianidae. They are a non-migratory Old World group.These are medium-sized birds, intermediate between the larger pheasants and the smaller quails. Partridges are native to Europe, Asia, Africa, and the Middle East...
s, snowcock
Snowcock
The snowcocks are a group of bird species in the genus Tetraogallus of the pheasant family, Phasianidae. They are ground-nesting birds which breed in the mountain ranges of southern Eurasia from the Caucasus to the Himalayas and western China. The Himalayan Snowcock has been introduced...
s, francolin
Francolin
Francolins are birds that traditionally have been placed in the genus Francolinus, but now commonly are divided into multiple genera , although some of the major taxonomic listing sources have yet to divide them. They are members of the pheasant family, Phasianidae...
s, spurfowls, tragopan
Tragopan
Tragopan is a genus of bird in the family Phasianidae. These birds are commonly called "horny pheasants" because of two brightly-colored, fleshy horns on their heads that they can erect during courtship displays...
s, monal
Monal
A Monal is a bird of genus Lophophorus of the Pheasant family, Phasianidae. There are three species and several sub-species within the genus Lophophorus:* Himalayan Monal Lophophorus impejanus* Sclater's Monal Lophophorus sclateri...
s, pheasant
Pheasant
Pheasants refer to some members of the Phasianinae subfamily of Phasianidae in the order Galliformes.Pheasants are characterised by strong sexual dimorphism, males being highly ornate with bright colours and adornments such as wattles and long tails. Males are usually larger than females and have...
s, peafowl
Peafowl
Peafowl are two Asiatic species of flying birds in the genus Pavo of the pheasant family, Phasianidae, best known for the male's extravagant eye-spotted tail, which it displays as part of courtship. The male is called a peacock, the female a peahen, and the offspring peachicks. The adult female...
s and jungle fowls. In general, they are plump (although they may vary in size) and have broad, relatively short wings. There are 156 species worldwide and 2 species which occur in Guam.
- Black FrancolinBlack FrancolinThe Black Francolin, Francolinus francolinus, is a gamebird in the pheasant family Phasianidae of the order Galliformes, gallinaceous birds. It was formerly known as the Black Partridge.-Identification:...
Francolinus francolinus (I) - Blue-breasted Quail Coturnix chinensis
Rails, crakes, gallinules, and coots
Order: GruiformesGruiformes
The Gruiformes are an order containing a considerable number of living and extinct bird families, with a widespread geographical diversity. Gruiform means "crane-like"....
Family: Rallidae
Rallidae
The rails, or Rallidae, are a large cosmopolitan family of small to medium-sized birds. The family exhibits considerable diversity and the family also includes the crakes, coots, and gallinules...
Rallidae is a large family of small to medium-sized birds which includes the rails, crakes, coot
Coot
Coots are medium-sized water birds that are members of the rail family Rallidae. They constitute the genus Fulica. Coots have predominantly black plumage, and, unlike many of the rails, they are usually easy to see, often swimming in open water...
s, and gallinule
Rallidae
The rails, or Rallidae, are a large cosmopolitan family of small to medium-sized birds. The family exhibits considerable diversity and the family also includes the crakes, coots, and gallinules...
s. Typically they inhabit dense vegetation in damp environments near lakes, swamps, or rivers. In general they are shy and secretive birds, difficult to observe. Most species have strong legs, and have long toes which are well adapted to soft, uneven surfaces. They tend to have short, rounded wings and be weak fliers. There are 143 species worldwide and 4 species which occur in Guam.
- Guam RailGuam RailThe Guam Rail, Gallirallus owstoni, is a flightless bird, endemic to Guam. The Guam Rail, which is locally known as the Ko'ko' in Chamorro, disappeared from southern Guam in the early 1970s and was extirpated from the entire island by the late 1980s...
Gallirallus owstoni (*EW) - White-browed CrakeWhite-browed CrakeThe White-browed Crake is a species of bird in the Rallidae family. It is found in Australia, Brunei, Cambodia, Fiji, Hong Kong, Indonesia, Japan, Malaysia, Micronesia, New Caledonia, Palau, Papua New Guinea, the Philippines, Samoa, Singapore, Solomon Islands, Thailand, and Vanuatu.Its natural...
Porzana cinerea - Common MoorhenCommon MoorhenThe Common Moorhen is a bird in the Rallidae family with an almost worldwide distribution. The North and South American Committees of the AOU and the IOC have voted on or before July 2011 to split the American forms into a new species Common Gallinule, however, no other committee has voted to...
Gallinula chloropus - Eurasian CootEurasian CootThe Eurasian Coot, Fulica atra, also known as Coot, is a member of the rail and crake bird family, the Rallidae. The Australian subspecies is known as the Australian Coot.-Distribution:...
Fulica atra
Oystercatchers
Order: CharadriiformesCharadriiformes
Charadriiformes is a diverse order of small to medium-large birds. It includes about 350 species and has members in all parts of the world. Most Charadriiformes live near water and eat invertebrates or other small animals; however, some are pelagic , some occupy deserts and a few are found in thick...
Family: Haematopodidae
The oystercatcher
Oystercatcher
The oystercatchers are a group of waders; they form the family Haematopodidae, which has a single genus, Haematopus. They are found on coasts worldwide apart from the polar regions and some tropical regions of Africa and South East Asia...
s are large and noisy plover
Plover
Plovers are a widely distributed group of wading birds belonging to the subfamily Charadriinae. There are about 40 species in the subfamily, most of them called "plover" or "dotterel". The closely related lapwing subfamily, Vanellinae, comprises another 20-odd species.Plovers are found throughout...
-like birds, with strong bills used for smashing or prising open molluscs. There are 11 species worldwide and 1 species which occurs in Guam.
- Eurasian OystercatcherEurasian OystercatcherThe Eurasian Oystercatcher Haematopus ostralegus, also known as the Common Pied Oystercatcher, or just Oystercatcher, is a wader in the oystercatcher bird family Haematopodidae. It is the most widespread of the oystercatchers, with three races breeding in western Europe, central Eurasia,...
Haematopus ostralegus
Plovers and lapwings
Order: CharadriiformesCharadriiformes
Charadriiformes is a diverse order of small to medium-large birds. It includes about 350 species and has members in all parts of the world. Most Charadriiformes live near water and eat invertebrates or other small animals; however, some are pelagic , some occupy deserts and a few are found in thick...
Family: Charadriidae
Charadriidae
The bird family Charadriidae includes the plovers, dotterels, and lapwings, about 64 to 66 species in all.- Morphology :They are small to medium-sized birds with compact bodies, short, thick necks and long, usually pointed, wings, but most species of lapwing may have more rounded wings...
The family Charadriidae includes the plover
Plover
Plovers are a widely distributed group of wading birds belonging to the subfamily Charadriinae. There are about 40 species in the subfamily, most of them called "plover" or "dotterel". The closely related lapwing subfamily, Vanellinae, comprises another 20-odd species.Plovers are found throughout...
s, dotterels, and lapwing
Lapwing
Vanellinae are any of various crested plovers, family Charadriidae, noted for its slow, irregular wingbeat in flight and a shrill, wailing cry. Its length is 10-16 inches. They are a subfamily of medium-sized wading birds which also includes the plovers and dotterels. The Vanellinae are...
s. They are small to medium-sized birds with compact bodies, short, thick necks and long, usually pointed, wings. They are found in open country worldwide, mostly in habitats near water, although there are some exceptions. There are 66 species worldwide and 6 species which occur in Guam.
- Pacific Golden-Plover Pluvialis fulva
- Black-bellied Plover Pluvialis squatarola
- Common Ringed Plover Charadrius hiaticula
- Little Ringed PloverLittle Ringed PloverThe Little Ringed Plover is a small plover. Adults have a grey-brown back and wings, a white belly, and a white breast with one black neckband. They have a brown cap, a white forehead, a black mask around the eyes with white above and a short dark bill...
Charadrius dubius - Lesser Sandplover Charadrius mongolus
- Greater Sandplover Charadrius leschenaultii
Sandpipers and allies
Order: CharadriiformesCharadriiformes
Charadriiformes is a diverse order of small to medium-large birds. It includes about 350 species and has members in all parts of the world. Most Charadriiformes live near water and eat invertebrates or other small animals; however, some are pelagic , some occupy deserts and a few are found in thick...
Family: Scolopacidae
Scolopacidae
The sandpipers are a large family, Scolopacidae, of waders or shorebirds. They include many species called sandpipers, as well as those called by names such as curlew and snipe. The majority of these species eat small invertebrates picked out of the mud or soil...
The Scolopacidae are a large diverse family of small to medium sized shorebirds including the sandpipers, curlew
Curlew
The curlews , genus Numenius, are a group of eight species of birds, characterised by long, slender, downcurved bills and mottled brown plumage. They are one of the most ancient lineages of scolopacid waders, together with the godwits which look similar but have straight bills...
s, godwit
Godwit
The godwits are a group of large, long-billed, long-legged and strongly migratory wading birds of the genus Limosa. They form large flocks on coasts and estuaries in winter....
s, shanks
Tringa
Tringa is a genus of waders, containing the shanks and tattlers. They are mainly freshwater birds, often with brightly coloured legs as reflected in the English names of six species, as well as the specific names of two of these and the Green Sandpiper. They are typically associated with northern...
, tattler
Tattler (bird)
The tattlers are the two very similar bird species in the shorebird genus Tringa. They formerly had their own genus, Heteroscelus. The old genus name means "different leg" in Greek, referring to the leg scales that differentiate the tattlers from their close relatives, the shanks.The species are:*...
s, woodcock
Woodcock
The woodcocks are a group of seven or eight very similar living species of wading birds in the genus Scolopax. Only two woodcocks are widespread, the others being localized island endemics. Most are found in the Northern Hemisphere but a few range into Wallacea...
s, snipe
Snipe
A snipe is any of about 25 wading bird species in three genera in the family Scolopacidae. They are characterized by a very long, slender bill and crypsis plumage. The Gallinago snipes have a nearly worldwide distribution, the Lymnocryptes Jack Snipe is restricted to Asia and Europe and the...
s, dowitcher
Dowitcher
The three dowitchers are medium-sized long-billed wading birds. They resemble godwits in body and bill shape, and the reddish underparts in summer, but are much shorter legged, more like snipe to which they are also somewhat closer related...
s and phalarope
Phalarope
A phalarope or wadepiper is any of three living species of slender-necked shorebirds in the genus Phalaropus of the bird family Scolopacidae. They are close relatives of the shanks and tattlers, the Actitis and Terek Sandpipers, and also of the turnstones and calidrids...
s. The majority of species eat small invertebrates picked out of the mud or soil. Variation in length of legs and bills enable different species to feed in the same habitat, particularly on the coast, without direct competition for food. There are 89 species worldwide and 23 species which occur in Guam.
- Swinhoe's SnipeSwinhoe's SnipeSwinhoe's Snipe, Gallinago megala, also known as Forest Snipe or Chinese Snipe, is a medium-sized , long-billed, migratory wader.-Identification:...
Gallinago megala - Black-tailed GodwitBlack-tailed GodwitThe Black-tailed Godwit, Limosa limosa, is a large, long-legged, long-billed shorebird first described by Carolus Linnaeus in 1758. It is a member of the Limosa genus, the godwits...
Limosa limosa - Bar-tailed GodwitBar-tailed GodwitThe Bar-tailed Godwit is a large wader in the family Scolopacidae, which breeds on Arctic coasts and tundra mainly in the Old World, and winters on coasts in temperate and tropical regions of the Old World...
Limosa lapponica - Little CurlewLittle CurlewThe Little Curlew, Numenius minutus, is a wader in the large bird family Scolopacidae. It is a very small curlew, which breeds in the far north of Siberia. It is closely related to the North American Eskimo Curlew....
Numenius minutus - WhimbrelWhimbrelThe Whimbrel Numenius phaeopus, is a wader in the large family Scolopacidae. It is one of the mostwidespread of the curlews, breeding across much of subarctic North America, Europe and Asia as far south as Scotland....
Numenius phaeopus - Bristle-thighed CurlewBristle-thighed CurlewThe Bristle-thighed Curlew, Numenius tahitiensis, is a large shorebird that breeds in Alaska and winters on tropical Pacific islands. It has a long, decurved bill and bristled feathers at the base of the legs. Its length is about 43 cm and wingspan about 84 cm...
Numenius tahitiensis - Spotted RedshankSpotted RedshankThe Spotted Redshank, Tringa erythropus, is a wader in the large bird family Scolopacidae. It breeds across northern Scandinavia and northern Asia and migrates south to the Mediterranean, the southern British Isles, France, tropical Africa, and tropical Asia for the winter...
Tringa erythropus - Marsh SandpiperMarsh SandpiperThe Marsh Sandpiper, Tringa stagnatilis, is a small wader. It is a rather small shank, and breeds in open grassy steppe and taiga wetlands from easternmost Europe to central Asia....
Tringa stagnatilis - Common Greenshank Tringa nebularia
- Nordmann's Greenshank Tringa guttifer
- Wood SandpiperWood SandpiperThe Wood Sandpiper, Tringa glareola, is a small wader. This Eurasian species is the smallest of the shanks, which are mid-sized long-legged waders of the family Scolopacidae.- Description and systematics :...
Tringa glareola - Terek SandpiperTerek SandpiperThe Terek Sandpiper is a small migratory Palearctic wader species, the only member of the genus Xenus.- Description and systematics :...
Xenus cinereus - Common SandpiperCommon SandpiperThe Common Sandpiper is a small Palearctic wader. This bird and its American sister species, the Spotted Sandpiper , make up the genus Actitis. They are parapatric and replace each other geographically; stray birds of either species may settle down with breeders of the other and hybridize...
Actitis hypoleucos - Gray-tailed Tattler Heterosceles brevipes
- Wandering TattlerWandering TattlerThe Wandering Tattler, Tringa incana , is a medium-sized wading bird. It is similar in appearance to the closely related Gray-tailed Tattler, T. brevipes...
Heterosceles incanus - Ruddy TurnstoneRuddy TurnstoneThe Ruddy Turnstone is a small wading bird, one of two species of turnstone in the genus Arenaria. It is now classified in the sandpiper family Scolopacidae but was formerly sometimes placed in the plover family Charadriidae...
Arenaria interpres - SanderlingSanderlingThe Sanderling is a small wader. It is a circumpolar Arctic breeder, and is a long-distance migrant, wintering south to South America, South Europe, Africa, and Australia...
Calidris alba - Red-necked StintRed-necked StintThe Red-necked Stint is a small migratory wader.- Description :These birds are among the smallest of waders, very similar to the Little Stint, Calidris minuta, with which they were once considered conspecific...
Calidris ruficollis - Long-toed StintLong-toed StintThe Long-toed Stint, Calidris or Erolia subminuta, is a small wader bird. It breeds across northern Asia and is strongly migratory, wintering in south and south east Asia and Australasia...
Calidris subminuta - Pectoral SandpiperPectoral SandpiperThe Pectoral Sandpiper, Calidris melanotos, is a small wader. It is sometimes separated with the "stint" sandpipers in Erolia. This may or may not represent a good monophyletic group, depending on the placement of the phylogenetically enigmatic Curlew Sandpiper , the type species of Erolia...
Calidris melanotos - Sharp-tailed SandpiperSharp-tailed SandpiperThe Sharp-tailed Sandpiper, Calidris acuminata is a small wader.- Taxonomy :More recently, a review of new data has indicated that this bird should perhaps better be placed into the genus Philomachus- as P...
Calidris acuminata - DunlinDunlinThe Dunlin, Calidris alpina, is a small wader, sometimes separated with the other "stints" in Erolia. It is a circumpolar breeder in Arctic or subarctic regions. Birds that breed in northern Europe and Asia are long-distance migrants, wintering south to Africa, southeast Asia and the Middle East...
Calidris alpina - Ruff Philomachus pugnax
Gulls
Order: CharadriiformesCharadriiformes
Charadriiformes is a diverse order of small to medium-large birds. It includes about 350 species and has members in all parts of the world. Most Charadriiformes live near water and eat invertebrates or other small animals; however, some are pelagic , some occupy deserts and a few are found in thick...
Family: Laridae
Laridae is a family of medium to large birds seabirds and includes gull
Gull
Gulls are birds in the family Laridae. They are most closely related to the terns and only distantly related to auks, skimmers, and more distantly to the waders...
s and kittiwake
Kittiwake
The kittiwakes are two closely related seabird species in the gull family Laridae, the Black-legged Kittiwake and the Red-legged Kittiwake . The epithets "Black-legged" and "Red-legged" are used to distinguish the two species in North America, but in Europe, where R...
s. They are typically grey or white, often with black markings on the head or wings. They have stout, longish bills and webbed feet. There are 55 species worldwide and 1 species which occurs in Guam.
- Black-headed GullBlack-headed GullThe Black-headed Gull is a small gull which breeds in much of Europe and Asia, and also in coastal eastern Canada. Most of the population is migratory, wintering further south, but some birds in the milder westernmost areas of Europe are resident...
Larus ridibundus
Terns
Order: CharadriiformesCharadriiformes
Charadriiformes is a diverse order of small to medium-large birds. It includes about 350 species and has members in all parts of the world. Most Charadriiformes live near water and eat invertebrates or other small animals; however, some are pelagic , some occupy deserts and a few are found in thick...
Family: Sternidae
Tern
Tern
Terns are seabirds in the family Sternidae, previously considered a subfamily of the gull family Laridae . They form a lineage with the gulls and skimmers which in turn is related to skuas and auks...
s are a group of generally general medium to large sea-birds typically with grey or white plumage, often with black markings on the head. Most terns hunt fish by diving but some pick insects off the surface of fresh water. Terns are generally long-lived birds, with several species now known to live in excess of 25 to 30 years. There are 44 species worldwide and 8 species which occur in Guam.
- Great Crested Tern Sterna bergii
- Black-naped TernBlack-naped TernThe Black-naped Tern is an oceanic tern mostly found in tropical and subtropical areas of the Pacific and Indian Oceans. It is rarely found inland....
Sterna sumatrana - Common TernCommon TernThe Common Tern is a seabird of the tern family Sternidae. This bird has a circumpolar distribution, breeding in temperate and sub-Arctic regions of Europe, Asia and east and central North America. It is strongly migratory, wintering in coastal tropical and subtropical regions. It is sometimes...
Sterna hirundo - Little TernLittle TernThe Little Tern, Sternula albifrons or Sterna albifrons, is a seabird of the tern family Sternidae. It was formerly placed into the genus Sterna, which now is restricted to the large white terns . The former North American and Red Sea S. a...
Sterna albifrons - Sooty TernSooty TernThe Sooty Tern, Onychoprion fuscatus , is a seabird of the tern family . It is a bird of the tropical oceans, breeding on islands throughout the equatorial zone. Colloquially, it is known as the Wideawake Tern or just wideawake...
Sterna fuscata - White-winged TernWhite-winged TernThe White-winged Tern, or White-winged Black Tern, Chlidonias leucopterus, is a small tern generally found in or near bodies of fresh water across from Southeastern Europe east to Australia....
Chlidonias leucopterus - Brown NoddyBrown NoddyThe Brown Noddy or Common Noddy is a seabird from the tern family. The largest of the noddies, it can be told from the closely related Black Noddy by its larger size and plumage, which is dark brown rather than black...
Anous stolidus - White TernWhite TernThe White Tern is a small seabird found across the tropical oceans of the world. It is sometimes known as the Fairy Tern although this name is potentially confusing as it is the common name of the Fairy Tern Sternula nereis...
Gygis alba
Pigeons and doves
Order: ColumbiformesColumbiformes
Columbiformes are an avian order that includes the very widespread and successful doves and pigeons, classified in the family Columbidae, and the extinct Dodo and the Rodrigues Solitaire, long classified as a second family Raphidae. 313 species, found worldwide, comprise the Columbiformes order....
Family: Columbidae
Pigeons and dove
Dove
Pigeons and doves constitute the bird family Columbidae within the order Columbiformes, which include some 300 species of near passerines. In general terms "dove" and "pigeon" are used somewhat interchangeably...
s are stout-bodied birds with short necks and short slender bills with a fleshy cere
Cère
The Cère is a long river in south-western France, left tributary of the Dordogne River. Its source is in the south-western Massif Central, near the mountain Plomb du Cantal...
. There are 308 species worldwide and 4 species which occur in Guam.
- Rock PigeonRock PigeonThe Rock Dove or Rock Pigeon, is a member of the bird family Columbidae . In common usage, this bird is often simply referred to as the "pigeon"....
Columba livia - Island Collared-DoveIsland Collared-doveThe Island Collared Dove is a species of bird in the Columbidae family.The species has a discontinuous distribution, occurring in the Philippines and in the Indonesian islands from Java to Timor, but absent from Borneo and Sulawesi...
Streptopelia bitorquata
Typical owls
Order: StrigiformesFamily: Strigidae
Typical owl
Typical owl
True owl or Typical owl are one of the two generally accepted families of Owls, the other being the barn owls . The Sibley-Ahlquist taxonomy unites the Caprimulgiformes with the owl order; here, the typical owls are a subfamily Strigidae...
s are small to large solitary nocturnal birds of prey. They have large forward-facing eyes and ears, a hawk-like beak, and a conspicuous circle of feathers around each eye called a facial disk. There are 195 species worldwide and 1 species which occurs in Guam.
- Short-eared OwlShort-eared OwlThe Short-eared Owl is a species of typical owl . In Scotland this species of owl is often referred to as a cataface, grass owl or short-horned hootlet. Owls belonging to genus Asio are known as the eared owls, as they have tufts of feathers resembling mammalian ears. These "ear" tufts may or may...
Asio flammeus
Swifts
Order: ApodiformesApodiformes
Traditionally, the bird order Apodiformes contained three living families: the swifts , the tree swifts , and the hummingbirds . In the Sibley-Ahlquist taxonomy, this order is raised to a superorder Apodimorphae in which hummingbirds are separated as a new order, Trochiliformes...
Family: Apodidae
Swift
Swift
The swifts are a family, Apodidae, of highly aerial birds. They are superficially similar to swallows, but are actually not closely related to passerine species at all; swifts are in the separate order Apodiformes, which they share with hummingbirds...
s are small aerial birds, spending the majority of their lives flying. These birds have very short legs and never settle voluntarily on the ground, perching instead only on vertical surfaces. Many swifts have long swept-back wings that resemble a crescent or a boomerang. There are 98 species worldwide and 1 species which occurs in Guam.
- Mariana Swiftlet Aerodramus bartschi
Kingfishers
Order: CoraciiformesCoraciiformes
The Coraciiformes are a group of usually colorful near passerine birds including the kingfishers, the Hoopoe, the bee-eaters, the rollers, and the hornbills...
Family: Alcedinidae
Kingfishers are medium-sized birds with large heads, long pointed bills, short legs, and stubby tails. There are 93 species worldwide and 2 species which occur in Guam.
- Micronesian KingfisherMicronesian KingfisherThe Micronesian Kingfisher, Todiramphus cinnamominus, is a species of kingfisher from the Pacific Islands of Guam, Pohnpei and Palau...
Todirhamphus cinnamominus - Collared KingfisherCollared KingfisherThe Collared Kingfisher is a medium-sized kingfisher belonging to the family Halcyonidae, the tree kingfishers. It is also known as the White-collared Kingfisher or Mangrove Kingfisher. It has a wide range extending from the Red Sea across southern Asia and Australasia to Polynesia...
Todirhamphus chloris
Swallows and martins
Order: PasseriformesFamily: Hirundinidae
The Hirundinidae family is a group of passerines characterized by their adaptation to aerial feeding. Their adaptations include a slender streamlined body, long pointed wings and short bills with wide gape. The feet are designed for perching rather than walking, and the front toes are partially joined at the base. There are 75 species worldwide and 1 species which occurs in Guam.
- Barn SwallowBarn SwallowThe Barn Swallow is the most widespread species of swallow in the world. It is a distinctive passerine bird with blue upperparts, a long, deeply forked tail and curved, pointed wings. It is found in Europe, Asia, Africa and the Americas...
Hirundo rustica
Wagtails and pipits
Order: PasseriformesFamily: Motacillidae
Motacillidae
The Motacillidae are a family of small passerine birds with medium to long tails. There are around 65 species in 6 genera and they include the wagtails, longclaws and pipits. The longclaws are entirely restricted to the Afrotropics, and the wagtails are predominately found in Europe, Africa and...
The Motacillidae are a family of small passerine birds with medium to long tails. They include the wagtails, longclaws and pipits. They are slender, ground feeding insectivores of open country. There are 54 species worldwide and 1 species which occurs in Guam.
- Gray Wagtail Motacilla cinerea
Old World warblers
Order: PasseriformesFamily: Sylviidae
Sylviidae
Sylviidae is a family of passerine birds that was part of an assemblage known as the Old World warblers. The family was formerly a wastebin taxon with over 400 species of bird in over 70 genera. The family was poorly defined with many characteristics shared with other families...
The family Sylviidae is a group of small insectivorous passerine birds. The Sylviidae mainly occur as breeding species, as the common name implies, in Europe, Asia and, to a lesser extent Africa. Most are of generally undistinguished appearance, but many have distinctive songs. There are 291 species worldwide and 1 species which occurs in Guam.
- Nightingale Reed-WarblerNightingale Reed-warblerThe Nightingale Reed-warbler is a critically endangered songbird of the Mariana Islands. The Chamorro name for the bird is ga`ga` karisu ....
Acrocephalus luscinia (Ex)
Fantails
Order: PasseriformesFamily: Rhipiduridae
The Fantails are small insectivorous birds which are specialist aerial feeders. There are 44 species worldwide and 2 species which occur in Guam.
- Northern FantailNorthern FantailThe Northern Fantail is a species of bird in the Rhipiduridae family.It is found in Australia, Indonesia, and Papua New Guinea....
Rhipidura rufiventris - Rufous FantailRufous FantailThe Rufous Fantail Rhipidura rufifrons inhabits the east coast of Australia. The base of its tail is bright orange-red in colour and their wings are greyish brown. They have a black and white breast that grades into a white colour on the chin and throat....
Rhipidura rufifrons
Monarch flycatchers
Order: PasseriformesFamily: Monarchidae
The monarch flycatchers are small to medium-sized insectivorous passerines, which hunt by flycatching. There are 99 species worldwide and 1 species which occurs in Guam.
- Guam FlycatcherGuam FlycatcherThe Guam Flycatcher or Guam Broadbill was a species of bird in the Monarchidae family. It was endemic to Guam, where it was known locally as the chuguangguang...
Myiagra freycineti (*E)
White-eyes
Order: PasseriformesFamily: Zosteropidae
The white-eyes are small and are mostly of undistinguished appearance, the plumage above being generally either some dull color like greenish olive, but some species have a white or bright yellow throat, breast or lower parts, and several have buff flanks. As their name suggests many species have a white ring around the eyes. There are 96 species worldwide and 1 species which occurs in Guam.
- Bridled White-eyeBridled White-eyeThe Bridled White-eye is a species of bird in the Zosteropidae family.It is endemic to the Mariana Islands, where it is today restricted to the islands of Tinian, Saipan and Aguijan in the Northern Mariana Islands...
Zosterops conspicillatus
Honeyeaters
Order: PasseriformesFamily: Meliphagidae
The honeyeaters are a large and diverse family of small to medium-sized birds most common in Australia and New Guinea. They are nectar feeders and closely resemble other nectar-feeding passerines. There are 174 species worldwide and 1 species which occurs in Guam.
- Micronesian MyzomelaMicronesian MyzomelaThe Micronesian Myzomela is a species of bird in the honeyeater family Meliphagidae. The species forms a superspeices wit a number of related and similar looking island and mainland myzomelas across the Pacific and Australasia...
Myzomela rubratra
Drongos
Order: PasseriformesFamily: Dicruridae
The drongos are mostly are black or dark grey in colour, sometimes with metallic tints. They have long forked tails, and some Asian species have elaborate tail decorations. They have short legs and sit very upright whilst perched, like a shrike. They flycatch or take prey from the ground. There are 24 species worldwide and 1 species which occurs in Guam.
- Black DrongoBlack DrongoThe Black Drongo , also known as the King Crow, is a small Asian passerine bird of the drongo family Dicruridae. Previously considered a subspecies of the African Fork-tailed Drongo , it is now recognized as a full species...
Dicrurus macrocercus
Crows, jays, ravens and magpies
Order: PasseriformesFamily: Corvidae
Corvidae
Corvidae is a cosmopolitan family of oscine passerine birds that contains the crows, ravens, rooks, jackdaws, jays, magpies, treepies, choughs and nutcrackers. The common English names used are corvids or the crow family , and there are over 120 species...
The Corvidae family includes crow
Crow
Crows form the genus Corvus in the family Corvidae. Ranging in size from the relatively small pigeon-size jackdaws to the Common Raven of the Holarctic region and Thick-billed Raven of the highlands of Ethiopia, the 40 or so members of this genus occur on all temperate continents and several...
s, raven
Raven
Raven is the common name given to several larger-bodied members of the genus Corvus—but in Europe and North America the Common Raven is normally implied...
s, jay
Jay
The jays are several species of medium-sized, usually colorful and noisy, passerine birds in the crow family Corvidae. The names jay and magpie are somewhat interchangeable, and the evolutionary relationships are rather complex...
s, chough
Chough
The Red-billed Chough or Chough , Pyrrhocorax pyrrhocorax, is a bird in the crow family; it is one of only two species in the genus Pyrrhocorax...
s, magpie
Magpie
Magpies are passerine birds of the crow family, Corvidae.In Europe, "magpie" is often used by English speakers as a synonym for the European Magpie, as there are no other magpies in Europe outside Iberia...
s, treepie
Treepie
The treepies comprise four closely related genera of long-tailed passerine birds in the family Corvidae...
s, nutcracker
Nutcracker (bird)
The nutcrackers are a genus of two species of passerine bird, in the family Corvidae, related to the jays and crows. One, the Spotted Nutcracker , occurs in Europe and Asia, the other, Clark's Nutcracker , in western North America.The most important food resources for both these species are the...
s, and ground jay
Ground jay
The ground jays or ground choughs belong to a distinct group of the passerine order of birds in the genus Podoces of the crow family Corvidae...
s. Corvids are above average in size for the bird order Passeriformes. Some of the larger species show high levels of learning behavior. There are 120 species worldwide and 1 species which occurs in Guam.
- Mariana CrowMariana CrowThe Mariana Crow is a species of the crow family from the north Pacific. It is an endangered species which has steadily declined in numbers since the 1960s.-Description:...
Corvus kubaryi
Starlings
Order: PasseriformesFamily: Sturnidae
Starlings are small to medium-sized passerine birds. Their flight is strong and direct, and they are very gregarious. Their preferred habitat is fairly open country. They eat insects and fruit. Plumage is typically dark with a metallic sheen. There are 125 species worldwide and 1 species which occurs in Guam.
- Micronesian StarlingMicronesian StarlingThe Micronesian Starling is a species of starling in the Sturnidae family.It is found in Micronesia, Northern Mariana Islands, and Palau....
Aplonis opaca
Sparrows
Order: PasseriformesFamily: Passeridae
Sparrow
Sparrow
The sparrows are a family of small passerine birds, Passeridae. They are also known as true sparrows, or Old World sparrows, names also used for a genus of the family, Passer...
s are small passerine birds. In general, sparrows tend to be small, plump, brown or grey birds with short tails and short powerful beaks. Sparrows are seed-eaters, and they also consume small insects. There are 35 species worldwide and 1 species which occurs in Guam.
- Eurasian Tree Sparrow Passer montanus (I)