Damara Red-billed Hornbill
Tockus damarensis
Fairly small, slim, long-tailed hornbill. Note the red bill, dark eye, pale face, and heavily spotted back. White patches on the wing and outer tail are conspicuous in flight. Found in arid savanna, often in lusher woodland along dry riverbeds. Call is a series of clucks that starts with single notes, then becomes louder and more emphatic, with doubled notes. Has a small area of overlap with the very similar Southern Red-billed Hornbill in northern Namibia. Separated by the unstreaked white face and dark eye, though beware of hybrids. Somewhat like Monteiro’s Hornbill, but smaller and slimmer-billed, with bolder white spotting on the back.
识别特征
Damara red-billed hornbills are small species of African hornbills. They have curved dark to bright red bills with their nostrils on the upper beak close to their eyes. Their heads are covered in greyish-white feathers with dark grey feathers running along the back of their heads and upper half of the neck. Like all red-billed hornbills, Damara red-billed hornbills have wings covered in circles of white feathers surrounded by black or dark brown feathers. Their tail feathers are black on the exterior and white on the interior and their legs are short and grey with small semi-sharp claws at the end. Their bellies are usually greyish white but can also be pure white.
分类信息
- 学名
- Tockus damarensis
- 命名信息
- (Shelley, 1888)
- 目
- Bucerotiformes
- 科
- Bucerotidae
- 属
- Tockus
分布与栖息地
Damara red-billed hornbills can be found in southwestern Angola and northern Namibia. They can be found nesting or resting in local trees in grasslands or savannahs.
- 迁徙
- Resident species
保护状况
- 种群趋势
- stable
照片
分布
其他鸟类
Noisy Friarbird
Philemon corniculatus
Large gray-brown honeyeater with a completely bare black head and a distinctive "horn" on the bill. Upperparts are gray and underparts are dull white. Completely bare head is unique among the friarbirds. Typically very loud; emits a variety of harsh, loud squawks. Inhabits a wide range of habitats in eastern Australia, including (especially) open forests and gardens and parks, where it is common.
Black Swan
Cygnus atratus
Unmistakable large black swan with a red bill. When swimming this species is almost entirely black. Wings show extensive white flight feathers when flying. Juveniles are similar but dark-gray. In Australia, compare with Magpie Goose, which has white belly, and white underwing with black tips. Typically found along inland waterways, rivers, sewage ponds, and coastal lagoons and inlets. Sometimes flocks together in enormous numbers on large wetlands.
Bicolored Hawk
Astur bicolor
Widespread but uncommon forest hawk of tropical America. Adults are mostly gray, darker on crown and upperparts, with two pale tail bands and rufous thighs that are often hidden from view. Belly is tinged rufous and faintly barred in the southern part of its range. Immature looks remarkably like a forest-falcon, but note its yellow eye and lack of dark crescent on face. Overlaps with the similar Rufous-thighed Kite in parts of South America. Bicolored Hawk is larger, lacks a vertical stripe on the throat, usually stays inside forest, and almost never soars. Feeds mainly on birds and is generally quiet and elusive. Birds from central and southern Chile as well as adjacent parts of Argentina are now considered a separate species, Chilean Hawk.
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