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Great blue turaco
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Great blue turaco
The great blue turaco (Corythaeola cristata) is a bird species of the family Musophagidae. At 70–76 cm (28–30 in) in length, it is the largest species of turaco. It has predominantly grey-blue plumage with an upright blue-black crest around 10 cm (3.9 in) high. The male and female have similar plumage. It is widespread throughout the African tropical rainforest.
French ornithologist Louis Pierre Vieillot described the great blue turaco as Musophaga cristata in 1816, before German ornithologist Ferdinand Heine placed it in its own genus in 1860.
The great blue turaco is the sole member of the subfamily Corythaeolinae within the turaco family. Its closest relatives are the go-away birds and plantain eaters of the genus Crinifer. The common ancestor of both diverged from the ancestor of all other turaco species.
"Great blue turaco" has been designated the official common name by the International Ornithologists' Union (IOC). It is also called the blue plantain eater.
The species ranges from Guinea in the west, and east across the sub-Saharan nations to the Imatong Mountains in South Sudan; it also occurs in Uganda, Tanzania and western Kenya, south to the Democratic Republic of Congo and Angola. It inhabits rainforests and gallery forests. It has also adapted to areas cleared by humans and can thrive in these areas.
Generally, the great blue turaco is 70–76 cm (28–30 in) in length with a mass of 800–1,231 g (1.764–2.714 lb). The adult great blue turaco has predominantly grey-blue upperparts with an upright blue-black crest, white chin, yellow-green lower breast and yellow belly darkening to chestnut brown posteriorly. The undertail coverts are chestnut, and the undertail is black and yellowish. The yellow bill has an orange-red tip, the eyes are brown, and surrounded by a ring of black bare skin. The legs and feet are black with yellow soles. The sexes have similar plumage.
The great blue turaco is gregarious, with birds forming small troops of some six or seven individuals.
The great blue turaco eats leaves, flowers, as well as fruit of many plant species, including those of the genera Musanga, Cissus, Ficus (such as Ficus capensis) Polyalthia, Heisteria, Dacryodes, Pachypodanthium, Uapaca, Strombosia, Trichilia, Drypetes, Viscum, Beilschmiedia, Coelocaryon, Croton, and Pycnanthus. In Kenya, it has been recorded eating mitzeeri (Bridelia micrantha) in April, loquat (Eriobotrya japonica) in July, guava (Psidium guajava) in September and Cordia africana over November and December. Fieldwork in Rwanda revealed leaves constituted around 25% of its diet, being eaten more often when fruit is less abundant. The species also play a role in seed dispersal as it generally passes seed in its faeces some distance from parent trees.
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Great blue turaco
The great blue turaco (Corythaeola cristata) is a bird species of the family Musophagidae. At 70–76 cm (28–30 in) in length, it is the largest species of turaco. It has predominantly grey-blue plumage with an upright blue-black crest around 10 cm (3.9 in) high. The male and female have similar plumage. It is widespread throughout the African tropical rainforest.
French ornithologist Louis Pierre Vieillot described the great blue turaco as Musophaga cristata in 1816, before German ornithologist Ferdinand Heine placed it in its own genus in 1860.
The great blue turaco is the sole member of the subfamily Corythaeolinae within the turaco family. Its closest relatives are the go-away birds and plantain eaters of the genus Crinifer. The common ancestor of both diverged from the ancestor of all other turaco species.
"Great blue turaco" has been designated the official common name by the International Ornithologists' Union (IOC). It is also called the blue plantain eater.
The species ranges from Guinea in the west, and east across the sub-Saharan nations to the Imatong Mountains in South Sudan; it also occurs in Uganda, Tanzania and western Kenya, south to the Democratic Republic of Congo and Angola. It inhabits rainforests and gallery forests. It has also adapted to areas cleared by humans and can thrive in these areas.
Generally, the great blue turaco is 70–76 cm (28–30 in) in length with a mass of 800–1,231 g (1.764–2.714 lb). The adult great blue turaco has predominantly grey-blue upperparts with an upright blue-black crest, white chin, yellow-green lower breast and yellow belly darkening to chestnut brown posteriorly. The undertail coverts are chestnut, and the undertail is black and yellowish. The yellow bill has an orange-red tip, the eyes are brown, and surrounded by a ring of black bare skin. The legs and feet are black with yellow soles. The sexes have similar plumage.
The great blue turaco is gregarious, with birds forming small troops of some six or seven individuals.
The great blue turaco eats leaves, flowers, as well as fruit of many plant species, including those of the genera Musanga, Cissus, Ficus (such as Ficus capensis) Polyalthia, Heisteria, Dacryodes, Pachypodanthium, Uapaca, Strombosia, Trichilia, Drypetes, Viscum, Beilschmiedia, Coelocaryon, Croton, and Pycnanthus. In Kenya, it has been recorded eating mitzeeri (Bridelia micrantha) in April, loquat (Eriobotrya japonica) in July, guava (Psidium guajava) in September and Cordia africana over November and December. Fieldwork in Rwanda revealed leaves constituted around 25% of its diet, being eaten more often when fruit is less abundant. The species also play a role in seed dispersal as it generally passes seed in its faeces some distance from parent trees.
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