Razor-billed Curassow
Mitu tuberosum
Large dark bird of undisturbed rainforest. Its red, crested bill is easily recognizable. It has a dark body that appears iridescent navy blue in good light, with light red legs and a buffy tail tip. Found on the ground or in trees, sometimes quite high, in mature rainforest, usually singly or in pairs. Can be quite secretive, especially in areas with a lot of human activity. Gives a sharp, metallic “pick” call that is easy to overlook, as well as low booming calls around dawn and dusk.
识别特征
The razor-billed curassow is 83 to 89 cm (2.7 to 2.9 ft) long and males weigh about 3,860 g (8.5 lb). Their plumage is mostly black with a strong purplish blue gloss. The lower belly and undertail coverts are chestnut and the tips of the tail feathers white. It has a tall ragged crest. Its large bright red bill is laterally compressed, which gives the species its common name.
分类信息
The razor-billed curassow was originally placed in genus Crax but genetic data confirm that Mitu is a valid genus. It was for a time treated as a subspecies of Alagoas curassow (Mitu mitu) and they are now treated as sister species. The razor-billed curassow is monotypic.
- 学名
- Mitu tuberosum
- 命名信息
- (Spix, 1825)
- 目
- Galliformes
- 科
- Cracidae
- 属
- Mitu
分布与栖息地
The razor-billed curassow is found in much of Amazonia, mostly south of the Amazon River in eastern Peru, northern Bolivia, and northern Brazil all the way to the Atlantic coast. It is found north of the Amazon in southeastern Colombia, extreme northeastern Peru, and Brazil as far east as the Rio Negro. It inhabits lowland evergreen forest, primarily terra firme but also gallery and várzea forests and along the margins of lakes and streams. In elevation it ranges from sea level to 1,350 m (4,400 ft) though it may only locally exceed 1,000 m (3,300 ft).
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: declining.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
White-rimmed Brushfinch
Atlapetes leucopis
A rare and striking finch-like bird restricted to cloud forest of the Andes of Ecuador and southern Colombia. It is black with an olive breast and belly and a chestnut crown; the bold, white “spectacles” set it apart from any other bird in range. Sexes look alike. Typically encountered alone or in pairs; stays low, and usually remains in dense cover. Often first detected by its song, which consists of a series of sweet whistles and chirps; it sings faster and mixes in rapid trills when agitated.
Garden Emerald
Chlorostilbon assimilis
Small hummingbird with limited range. Male entirely glittering green with dark forked tail. Bill is straight and all black. Does not have coppery rump like Steely-vented Hummingbird. Female is clean white below with distinctive black cheek and white line behind eye. Nearly identical to Canivet’s Emerald but no range overlap. Found in second-growth, gardens, and forest edge.
Yellow-throated Toucan
Ramphastos ambiguus
Large conspicuous bird with oversized bill. Mostly black overall with yellow throat and face. Note bicolored bill: dark below and yellow above. Found in pairs or small groups, often parading through the canopy in search of fruit. Sometimes perches very obviously at the top of a tree. Favors forested areas, but can also be found in gardens and edges. Yelping call helps distinguish from similar looking species.
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