Tropical Pewee
Encyclopedia
The Tropical Pewee, Contopus cinereus, is a small passerine
Passerine
A passerine is a bird of the order Passeriformes, which includes more than half of all bird species. Sometimes known as perching birds or, less accurately, as songbirds, the passerines form one of the most diverse terrestrial vertebrate orders: with over 5,000 identified species, it has roughly...

 bird
Bird
Birds are feathered, winged, bipedal, endothermic , egg-laying, vertebrate animals. Around 10,000 living species and 188 families makes them the most speciose class of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from...

 in the tyrant flycatcher
Tyrant flycatcher
The tyrant flycatchers are a family of passerine birds which occur throughout North and South America. They are considered the largest family of birds on Earth, with more than 400 species. They are the most diverse avian family in every country in the Americas, except for the United States and...

 family. It breeds from southern Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

 and Trinidad
Trinidad
Trinidad is the larger and more populous of the two major islands and numerous landforms which make up the island nation of Trinidad and Tobago. It is the southernmost island in the Caribbean and lies just off the northeastern coast of Venezuela. With an area of it is also the fifth largest in...

 south to Bolivia
Bolivia
Bolivia officially known as Plurinational State of Bolivia , is a landlocked country in central South America. It is the poorest country in South America...

 and Argentina
Argentina
Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...

. The taxon
Taxon
|thumb|270px|[[African elephants]] form a widely-accepted taxon, the [[genus]] LoxodontaA taxon is a group of organisms, which a taxonomist adjudges to be a unit. Usually a taxon is given a name and a rank, although neither is a requirement...

 punensis, found in south-western Ecuador
Ecuador
Ecuador , officially the Republic of Ecuador is a representative democratic republic in South America, bordered by Colombia on the north, Peru on the east and south, and by the Pacific Ocean to the west. It is one of only two countries in South America, along with Chile, that do not have a border...

 and western Peru
Peru
Peru , officially the Republic of Peru , is a country in western South America. It is bordered on the north by Ecuador and Colombia, on the east by Brazil, on the southeast by Bolivia, on the south by Chile, and on the west by the Pacific Ocean....

, is usually included as a subspecies
Subspecies
Subspecies in biological classification, is either a taxonomic rank subordinate to species, ora taxonomic unit in that rank . A subspecies cannot be recognized in isolation: a species will either be recognized as having no subspecies at all or two or more, never just one...

 of the Tropical Pewee, but it has been suggested it should be considered a separate species, the Tumbes Pewee, Contopus punensis.

This pewee
Pewee
The genus Contopus is a group of small to medium-sized insect-eating birds in the Tyrant flycatcher family Tyrannidae.These birds are commonly known as peewees, from the call of one of the more common members of this vocal group...

 is found at the edges of forests and cultivated areas with tall trees. The nest is a small open saucer of fibre and grasses, lined with grass and decorated with lichen
Lichen
Lichens are composite organisms consisting of a symbiotic organism composed of a fungus with a photosynthetic partner , usually either a green alga or cyanobacterium...

 on its exterior. It is placed in a tree fork or on a branch. The female builds the nest and incubates the typical clutch of two creamy-white eggs, which are marked with red-brown spots at the larger end, for 15-16 days to hatching.

The Tropical Pewee is 14 cm long and weighs 12 g. The upperparts are dark brown or grey with a blackish crown and two whitish wing bars. The throat and centre of the breast are whitish, the abdomen is pale yellow, and the sides of the flanks and breast are grey-brown. There are large variation in the overall darkness of the plumage
Plumage
Plumage refers both to the layer of feathers that cover a bird and the pattern, colour, and arrangement of those feathers. The pattern and colours of plumage vary between species and subspecies and can also vary between different age classes, sexes, and season. Within species there can also be a...

, and especially the nominate subspecies from south-eastern Brazil
Brazil
Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

 and adjacent parts of Paraguay
Paraguay
Paraguay , officially the Republic of Paraguay , is a landlocked country in South America. It is bordered by Argentina to the south and southwest, Brazil to the east and northeast, and Bolivia to the northwest. Paraguay lies on both banks of the Paraguay River, which runs through the center of the...

 and Argentina can be very dark, almost approaching the Blackish Pewee
Blackish Pewee
The Blackish Pewee is a species of bird in the Tyrannidae family. It is found in Brazil, Ecuador, Guyana, and Peru....

 in colour. The bill is short, with a black upper mandible and orange lower mandible. Sexes are similar.

Tropical Pewees perch on a high watchpoint from which they sally forth to catch flying insect
Insect
Insects are a class of living creatures within the arthropods that have a chitinous exoskeleton, a three-part body , three pairs of jointed legs, compound eyes, and two antennae...

s, returning to the same exposed perch.

This is a conspicuous species, with a trilled threeee call, or a sharp weet. There are, however, some geographical variations in its voice. It will defend the nest aggressively against species as large as a Great Kiskadee
Great Kiskadee
The Great Kiskadee, Pitangus sulphuratus, is a passerine bird. It is a large tyrant flycatcher; sometimes its genus Pitangus is considered monotypic, with the Lesser Kiskadee The Great Kiskadee, Pitangus sulphuratus, is a passerine bird. It is a large tyrant flycatcher; sometimes its genus Pitangus...

.
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