Wallace's Hawk-Eagle
Nisaetus nanus
Typical small hawk-eagle. Small upright crest visible when perched. Adult has dark brown wings and a paler face. In flight, look for densely black-barred underparts, two white bands across the tail, and light brown on the inner part of the underwing (compared with the completely black-and-white underwings of Blyth’s Hawk-Eagle). Visibly smaller than both Blyth’s and Mountain hawk-eagles. Juvenile Wallace’s is pale tawny-brown on the head and on the underparts; the similar Blyth’s Hawk-Eagle has tail barring. Jerdon’s Baza can appear similar, but it has horizontal banding across the breast, whereas juvenile Wallace’s has unmarked underparts, pantaloons (fully feathered legs), and a broader black tip to the tail. Wallace’s Hawk-Eagle is often seen in flight over or perched on a snag in lowland forests and forest edges.
分类信息
- 学名
- Nisaetus nanus
- 命名信息
- (Wallace, 1868)
- 目
- Accipitriformes
- 科
- Accipitridae
- 属
- Nisaetus
分布与栖息地
- 迁徙
- Resident species
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Azure-rumped Tanager
Poecilostreptus cabanisi
Small, very local tanager of humid Pacific-slope foothills in Chiapas and Guatemala. Found in evergreen forests and adjacent shade-coffee plantations. Usually in pairs or small groups that forage at all levels, but often in the canopy of taller trees. Sexes look alike: pale bluish overall with contrasting black shoulders and black spotting across the breast. In good light, varied lilac, green, and turquoise sheens are apparent on the upperparts.
Slender-billed Tyrannulet
Inezia tenuirostris
Very active, a small, greenish-brown flycatcher with yellowish underparts. Shows a short bill with orange base, faint whitish eyebrow, and contrasting white wing bars. Sexes similar. Common, often alone or in pairs foraging; territorial, found in dry areas with scrub and small trees or mangrove border. Song is a fast trill “tr’r’r’R’R’R’R’r’r’r’r.” Similar to Southern Beardless-Tyrannulet, which shows more of a crest, less contrasting wing bars, and heavier and more curved bill. Found in northeastern Colombia and northwestern Venezuela.
Australasian Bittern
Botaurus poiciloptilus
Large, stocky, strongly patterned heron with broad neck and yellow-green legs. Upperparts dark brown, underparts streaked. Usually found in reed beds, where it can be difficult to observe; often forages at night. When disturbed, “freezes,” with head pointing upward (as if trying to blend in with the habitat). Compare young Rufous Night-Heron, which is much smaller, has shorter neck, and tends to roost in trees. Song a very deep, slowly repeated "boom."
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。