Yellow-legged Tinamou
Crypturellus noctivagus
A very shy and hard to see tinamou, endemic to Brazil. If views allow, note the heavily barred back and vent, rufous belly and throat, yellow legs, dark gray breast, and a pale well-marked eyebrow. Found in forest, scrub, and savanna. The voice is a series of mournful deep hoots: “woo wuh wuh wuh.”
识别特征
The yellow-legged tinamou is approximately 28 to 31 cm (11.0–12.2 in) in length. Its upperparts are grey, its lower back and wings are barred black, its neck and upper breast are greyish, its lower breast is rufous and its belly is whitish. It has a blackish cap and a buffy supercilium. The supercilium is broadest and most prominent in the race zabele, which also is paler overall, has a whiter (less rufescent) throat and brighter yellow legs than the nominate race.
分类信息
- 学名
- Crypturellus noctivagus
- 命名信息
- (Wied-Neuwied, M, 1820)
- 目
- Tinamiformes
- 科
- Tinamidae
- 属
- Crypturellus
分布与栖息地
Its preferred habitat is humid forest, but the subspecies zabele also occurs in drier wooded habitats, such as savanna-woodland and Caatinga. It can be found at elevation of 700 m (2,300 ft) or less.
- 迁徙
- Resident species
行为
Like other tinamous, the yellow-legged tinamou eats fruit off the ground or low-lying bushes. They also eat small amounts of invertebrates, flower buds, tender leaves, seeds, and roots. The male incubates the eggs which may come from as many as 4 different females, and then will raise them until they are ready to be on their own, usually 2–3 weeks. The nest is located on the ground in dense brush or between raised root buttresses.
保护状况
The yellow-legged tinamou suffers from widespread and continuing habitat destruction and hunting pressure. Overall, although its numbers are decreasing they are not critical and therefore listed as Near Threatened by the IUCN. It has an occurrence range of 1,470,000 km2 (570,000 sq mi). There are no recent records from parts of its range, and it appears to have been extirpated from Rio de Janeiro.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Kerguelen Tern
Sterna virgata
A slender tern with a short bill. Breeding adults are dark-capped with an ashy-gray body, a strongly contrasting white cheek stripe and rump, and a reddish bill and legs. In flight, underwings and uppertail are mostly grayish. In non-breeding plumage resembles other non-breeding terns, but note structure. Restricted to a handful of subantarctic islands, where it forages in inshore waters; common on Kerguelen and uncommon on Crozet and Marion. In breeding plumage, the larger Antarctic Tern is paler gray than Kerguelen, with a larger bill and whitish (not grayish) uppertail and underwings. Arctic Terns (in non-breeding plumage) only overlap with Kerguelen Terns (in breeding plumage) in austral summer.
Acadian Flycatcher
Empidonax virescens
Small flycatcher with big peaked head and relatively long bill. Extremely similar to several other species, especially Alder and Willow Flycatchers. Greenish-olive above and pale whitish below. Note thin white eyering and very long wingtips. Best distinguished from other flycatchers by habitat and voice. Birds near the northern end of breeding range prefer shaded ravines with mix of hemlocks and deciduous trees; farther south, found in mature deciduous forests. Tends to stay high in the canopy. Song is an explosive “pwit-SIP!,” call note is a sharp “pweek!”
Green-headed Oriole
Oriolus chlorocephalus
Old World oriole with mostly yellow plumage, a dull-green hood, and a red bill. Found in forest, forest edge, lush woodland, and adjacent secondary habitats, at low and middle elevations. Song is a series of slurred, liquid whistles, and calls include a raspy, up-slurred whine. Similar to African Black-headed Oriole, but with a good view, easily separated by the green rather than black hood. Often found in the same areas as Eurasian Golden and African Golden Orioles, but distinguished by being hooded rather than yellow-headed.
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