White-collared Kite
Leptodon forbesi
Rather large raptor, mostly black above and white below. Note the mostly white tail with a broad dark band, and the black-and-white bars on the flight feathers. A range-restricted species of the northeast Atlantic forest. Often attracts attention by its call, a series of repetitive “kua-kua-kua-kua” notes given in a spectacular display flight. Adults of the similar Gray-headed Kite have a gray throat, dark gray back of neck, barred black-and-white underwing, and two dark bars on the tail. Immatures have a different underwing and tail pattern.
识别特征
The white-collared kite is about 50 cm (20 in) long and weighs 550 to 580 g (1.2 to 1.3 lb). Adults usually have a grey head with a white hindneck, but sometimes only the crown is gray and in other individuals the entire head is white. They have black upperparts, white underparts, and a black tail with a whitish tip and a broad ash-white band in the middle (or two white bands with a narrow black one between them). Their scapulars, secondaries, and inner primaries have broad white tips that are typically reduced or lost through wear.
分类信息
Until the early 2000s the white-collared kite was considered an aberrant plumage of the grey-headed kite (L. cayanensis) but morphological and other evidence strongly support its treatment as a full species. It is monotypic.<p>The species' specific epithet commemorates the British zoologist William Alexander Forbes.[citation needed]
- 学名
- Leptodon forbesi
- 命名信息
- (Swann, 1922)
- 目
- Accipitriformes
- 科
- Accipitridae
- 属
- Leptodon
分布与栖息地
The white-collared kite is found only in parts of four states of northeastern Brazil: eastern Paraíba, eastern Pernambuco, eastern Alagoas, and southern Sergipe. It primarily inhabits the Atlantic forest though it has been spotted over mangroves. In elevation it occurs from near sea level to 600 m (2,000 ft).
- 迁徙
- Resident species
行为
The white-collared kite is mostly sedentary but has been seen flying over sugar cane fields between isolated forest patches.<p>Essentially nothing is known about the white-collared kite's hunting methods or diet. During the one documented observation the bird swooped from a perch, caught prey thought to be an insect, and returned to the same perch.<p>The white-collared kite's breeding biology is almost unknown. Single birds and pairs have been observed making fluttering "butterfly" display flights between October and January, and an active nest was found in April.<p>The white-collared kite makes a flight call "kua-kua-kua-kua" and "a cat-like 'eeeAAW'" during the display flight.
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Pallas's Fish-Eagle
Haliaeetus leucoryphus
A pale-headed raptor of inland marshes and lakes. Tends to be uncommon and thinly distributed throughout its range. Adult is dark brown above with a paler belly and dirty-gray head. When in flight from below, a broad white band on the dark tail is the most eye-catching feature. Juveniles have an all-dark tail, but have two bright white panels on the undersides of the wingtips; this patterning can be similar to that of some kites, but the fish-eagle is much larger, with a longer-winged and comparatively shorter-tailed profile.
Crimson-bellied Parakeet
Pyrrhura perlata
Long-tailed parakeet. Has green and blue cheeks, a scaled gray breast, and a conspicuous bright red belly. In flight, note the red on the underwing that looks continuous with the belly. Found in pairs or small noisy groups, at the edge or in the canopy of humid and second growth forests. The flight calls are harsh “krree krree krree” notes.
Bamboo Woodpecker
Gecinulus viridis
Sickly-green bamboo specialist, found in forests with bamboo stands from lowlands up into the hills. Male has a red crown. Overall plainness, combined with habitat, make this species fairly easy to identify. Forages slowly, pecking intermittently. Gives “nyeek” calls, often repeatedly, but evenly, without the descending or ascending pattern of many other woodpeckers.
开始您的观鸟之旅
在户外识别鸟类，并在下一次观察时随手查阅鸟类图鉴。