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Roller

 
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The rollers are an Old World
Old World

The Old World consists of those parts of Earth known to Europeans, Asians, and Africans in the 15th century....
 family of near passerine
Near passerine

Near passerine or higher land-bird assemblage are terms often given to arboreal birds or those most often believed to be related to the true passerines due to ecological similarities; the group corresponds to some extent with the Anomalogonatae of Garrod ....
 bird
Bird

Birds are wing, Bipedalismal, endothermic , vertebrate animals that lay egg . There are around 10,000 living species, making them the most numerous tetrapod vertebrates....
s, related to the kingfisher
Kingfisher

Kingfishers are small bright colored birds of the three families Alcedinidae , Halcyonidae , and Cerylidae . There are roughly 90 species of kingfisher....
s and bee-eater
Bee-eater

The bee-eaters are a group of near-passerine birds in the family Meropidae. Most species are found in Africa but others occur in southern Europe, Australia, and New Guinea....
s. The group gets its name from the aerial acrobatics some of these birds perform during courtship or territorial flights.

Description
Rollers resemble crow
Crow

The true crows are large passerine birds that form the genus Corvus in the family Corvidae. Ranging in size from the relatively small dove-sized 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 offsh...
s in size and build, ranging from 25 to 27 centimetres in length. They share the colourful appearance of those groups, blues and browns predominating. The two inner front toes are connected, but not the outer one.

They are insect eaters, with Eurystomus
Eurystomus

Eurystomus is a genus of the roller family of birds. It contains four broad-billed species, which breeds in Africa, Asia and Australasia....
 species taking their prey on the wing, and those of the genus Coracias
Coracias

Coracias is a genus of the rollers, an Old World family of near passerine birds related to the kingfishers and bee-eaters. They share the colourful appearance of those groups, blues and browns predominating....
 catching it on the ground.






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Encyclopedia


The rollers are an Old World
Old World

The Old World consists of those parts of Earth known to Europeans, Asians, and Africans in the 15th century....
 family of near passerine
Near passerine

Near passerine or higher land-bird assemblage are terms often given to arboreal birds or those most often believed to be related to the true passerines due to ecological similarities; the group corresponds to some extent with the Anomalogonatae of Garrod ....
 bird
Bird

Birds are wing, Bipedalismal, endothermic , vertebrate animals that lay egg . There are around 10,000 living species, making them the most numerous tetrapod vertebrates....
s, related to the kingfisher
Kingfisher

Kingfishers are small bright colored birds of the three families Alcedinidae , Halcyonidae , and Cerylidae . There are roughly 90 species of kingfisher....
s and bee-eater
Bee-eater

The bee-eaters are a group of near-passerine birds in the family Meropidae. Most species are found in Africa but others occur in southern Europe, Australia, and New Guinea....
s. The group gets its name from the aerial acrobatics some of these birds perform during courtship or territorial flights.

Description


Rollers resemble crow
Crow

The true crows are large passerine birds that form the genus Corvus in the family Corvidae. Ranging in size from the relatively small dove-sized 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 offsh...
s in size and build, ranging from 25 to 27 centimetres in length. They share the colourful appearance of those groups, blues and browns predominating. The two inner front toes are connected, but not the outer one.

They are insect eaters, with Eurystomus
Eurystomus

Eurystomus is a genus of the roller family of birds. It contains four broad-billed species, which breeds in Africa, Asia and Australasia....
 species taking their prey on the wing, and those of the genus Coracias
Coracias

Coracias is a genus of the rollers, an Old World family of near passerine birds related to the kingfishers and bee-eaters. They share the colourful appearance of those groups, blues and browns predominating....
 catching it on the ground. They often perch prominently whilst hunting, like giant shrike
Shrike

Shrikes are passerine birds of the family Laniidae. The family is composed of thirty one species in three genus. The family name, and that of the largest genus, Lanius, is derived from the Latin word for butcher, and some shrikes were also known as "butcher birds" because of their feeding habits....
s.

These are birds of warm climates. They nest in an unlined tree-hole, and lay 2-4 eggs. The eggs hatch after 17-20 days, and the young remain in the nest for approximately another 30 days.

Species


The eleven species are:

FAMILY: CORACIIDAE
  • Genus: Coracias
    Coracias

    Coracias is a genus of the rollers, an Old World family of near passerine birds related to the kingfishers and bee-eaters. They share the colourful appearance of those groups, blues and browns predominating....
    • European Roller
      European Roller

      The European Roller, Coracias garrulus, is the only member of the roller family of birds to breed in Europe. Its overall range extends into the Middle East and Central Asia and Morocco....
             Coracias garrulus
    • Abyssinian Roller
      Abyssinian Roller

      The Abyssinian Roller, Coracias abyssinica, is a member of the roller family of birds which breeds across tropical Africa in a belt south of the Sahara, known as the Sahel....
             Coracias abyssinica
    • Lilac-breasted Roller
      Lilac-breasted Roller

      The Lilac-breasted Roller, Coracias caudatus, is a member of the roller family of birds. It is widely distributed in sub-Saharan Africa and the southern Arabian Peninsula, preferring open woodland and savanna; it is largely absent from treeless places....
             Coracias caudata
    • Racquet-tailed Roller Coracias spatulata
    • Rufous-crowned Roller
      Rufous-crowned Roller

      The Rufous-crowned Roller Coracias naevia , is found over sub-Saharan Africa to as far south as Namibia and the Transvaal. Compared with other rollers its colours are rather dull and its voice rather harsh and grating....
             Coracias naevia
    • Indian Roller
      Indian Roller

      The Indian Roller , was formerly locally called the Blue Jay, a misnomer. It is a member of the roller family of birds which breeds in tropical southern Asia from Iraq to Thailand....
             Coracias benghalensis
    • Temminck's Roller Coracias temminckii
    • Blue-bellied Roller
      Blue-bellied Roller

      The Blue-bellied Roller, Coracias cyanogaster is a member of the roller family of birds which breeds across Africa in a narrow belt from Senegal to northeast Zaire....
             Coracias cyanogaster
  • Genus: Eurystomus
    Eurystomus

    Eurystomus is a genus of the roller family of birds. It contains four broad-billed species, which breeds in Africa, Asia and Australasia....
    • Broad-billed Roller
      Broad-billed Roller

      The Broad-billed Roller, Eurystomus glaucurus, is a member of the roller family of birds which breeds across tropical Africa and Madagascar in all but the driest regions....
       Eurystomus glaucurus
    • Blue-throated Roller
      Blue-throated Roller

      The Blue-throated Roller is a species of bird in the Coraciidae family.It is found in Angola, Benin, Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Gabon, Ghana, Guinea, Guinea-Bissau, Liberia, Mali, Nigeria, Sierra Leone, Togo, and Uganda....
       Eurystomus gularis
    • Azure Roller Eurystomus azureus
    • Dollarbird
      Dollarbird

      The Dollarbird, Eurystomus orientalis also known as the Dollar Roller is a bird of the roller family, so named because of the distinctive blue dollar shaped spots on its wings....
       Eurystomus orientalis


External links

  • on the Internet Bird Collection