Rufous-winged Buzzard
Butastur liventer
A rather small hawk with demonic-looking pale eyes. Grayish-brown with a white belly and warmer cinnamon-brown tones in the wings and tail that are most prominent when the bird is in flight. Proportions somewhat halfway between a Buteo and an Accipiter. Often hunts from an exposed perch in open dry forests, as well as open edge habitats such as fields and scrubby areas.
识别特征
The rufous-winged buzzard (Butastur liventer) is an Asian bird of prey. It is a resident breeder of Indochina, Java and Sulawesi. It is a species of deciduous forest and second growth up to 800 m. The adult rufous-winged buzzard is 38–43 cm long. It has a grey head and underparts, with some streaking on the crown, neck and breast. The rest of the upperparts are rufous grey, and the uppertail is bright rufous. In flight, from above it shows rufous-chestnut flight feathers and the rufous uppertail, and from below it has a grey body, white underwing coverts, and greyish flight feathers and undertail. It is monomorphic. The juvenile is duller and browner, with a brown-grey head and white supercilium. This species is similar in size and shape to the migratory grey-faced buzzard, but that species has browner upperparts and tail, a white throat, and brown-barred white belly. The rufous-winged buzzard eats lizards, small mammals and large insects. Its call is a shrill pit-piu.
分类信息
Genus: Butastur; Family: Accipitridae; Order: Accipitriformes.
- 学名
- Butastur liventer
- 命名信息
- (Temminck, 1827)
- 目
- Accipitriformes
- 科
- Accipitridae
- 属
- Butastur
分布与栖息地
- 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
Lesser Hornero
Furnarius minor
The smallest hornero. Plumage rusty overall with a white eyebrow, a gray crown, and a white throat. Note the gray legs. Found in scrub on river islands and occasionally in human-modified habitats near major rivers. Forages walking on the ground, especially at the water’s edge. The song is a series of fast staccato “kee” notes, usually given in duet. Other horneros with overlapping distributions have longer and louder songs.
Northern Emerald-Toucanet
Aulacorhynchus prasinus
Medium-sized, grass-green toucan of humid tropical forest in foothills and highlands; also very locally in lowlands. Usually in pairs or small groups, moving through the canopy or feeding at fruiting trees. Nothing similar in its range. Note the rusty tail tips, best seen from below. Pattern of black and yellow on bill varies from region to region.
Least Boobook
Ninox sumbaensis
A rufous-brown owl with yellow eyes, prominent white eyebrows, and mottled underparts. Juvenile reportedly redder-colored and plainer. Inhabits forested lower foothills, regularly in pairs. A recently described, little-known owl confined to Sumba. Smaller than Sumba Boobook, and separated by yellow eyes, lack of bands on the underparts, and markedly different voice. Song is a single “woop” note, often given as a duet. One sex calls with a higher pitch than the other.
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。