White-rumped Hawk
Parabuteo leucorrhous
Small raptor of montane forest in the Andes from Venezuela to Argentina, with a disjunct population in southeastern South America. Adults are black with a piercing yellow eye. In flight, look for the paddle shaped wings and contrasting white underwing coverts. The tail has contrasting black and white bands. Juveniles are buffy below with messy dark markings; note the white eyebrow and overall compact shape. Singles or pairs are uncommon over forest or adjacent clearings. Typically seen soaring or occasionally perched in the canopy.
识别特征
The white-rumped hawk is 33 to 40 cm (13 to 16 in) long with a 67 to 79 cm (26 to 31 in) wingspan. One male weighed 290 g (10 oz) and one female 389 g (14 oz). Males and females have the same plumage. Adults are almost entirely black but with the namesake white rump and undertail coverts. Their tail has a narrow grayish-brown band at its midpoint and their thighs are feathered rufous. Their eye, cere, legs, and feet are yellow. Immatures have brown upperparts with rufous mottling and heavily mottled rufous underparts.
分类信息
The white-rumped hawk was previously placed in the large genus Buteo but a 2009 paper provided the evidence to move it to genus Parabuteo, joining Harris's hawk (P. unicinctus) there. An earlier proposal to place it in the resurrected genus Percnohierax was not accepted. The white-rumped hawk is monotypic.
- 学名
- Parabuteo leucorrhous
- 命名信息
- (Quoy & Gaimard, 1824)
- 目
- Accipitriformes
- 科
- Accipitridae
- 属
- Parabuteo
分布与栖息地
The white-rumped hawk has two separate ranges. One is from the Andes and other mountains of Venezuela and Colombia south in the Andes through Ecuador into Peru, Boliva, and northwestern Argentina. The other range is from southern Brazil through Paraguay into northeastern Argentina. The species inhabits the interior and edges of dense subtropical and tropical forest and also the Chaco in the east. In elevation it mostly occurs between 1,500 and 2,900 m (4,900 and 9,500 ft) in Colombia, between 1,650 and 2,500 m (5,400 and 8,200 ft) in Peru, and up to 3,500 m (11,500 ft) in Bolivia. It occurs at lower elevations in its eastern range.
- 迁徙
- Resident species
行为
The white-rumped hawk is generally sedentary but there is evidence that it is somewhat nomadic.<p>The white-rumped hawk's hunting methods and diet are mostly unknown. It has been documented feeding on reptiles, frogs, insects, and rats.<p>The white-rumped hawk's breeding season appears to vary geographically, spanning at least February and March in Colombia and possibly June to January in Ecuador, and including October in Brazil. One described nest was a shallow cup of sticks lined with green leaves placed 22 m (72 ft) above the ground in a pine tree. It contained two eggs.<p>The white-rumped hawk's call is "a high-pitched whistle" with some variations such as "KEEEEiu" and "a longer, more monotonous high-pitched whistle".
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Vanuatu Kingfisher
Todiramphus farquhari
A beautiful, boldly contrasting kingfisher with a blue head, a big black eye-mask, a white throat and neck, vibrant blue upperparts, and bright ginger underparts. Prefers undisturbed lowland forest. Often shy, sitting motionless in the canopy. Bright orange underparts separate it from other local kingfishers. Very vocal, giving a long series of chirping notes rising in pitch and speed.
Hartlaub's Spurfowl
Pternistis hartlaubi
Small francolin with an unusually long and downcurved bill. The male and female are very different: the male has a white eye-stripe and heavy streaking below, while the female has plain rufous underparts. Found on and around rock outcrops in semi-desert brushland and arid savanna. Usually in pairs and small groups. Main call is a very loud, repeated, up-and-down “cheetle-chiddle” duet. Distinguished from other francolins in its range by lack of red bill and/or facial skin.
Red-legged Partridge
Alectoris rufa
Distinctive gamebird of farmland, grassy fields, and open heathland. Seen mainly as pairs and small groups, often along the edges of fields. Plumage is ornate and handsome, with a red bill, white throat, black streaked necklace, boldly barred flanks, and buffy belly. Other similar species (such as Chukar) do not overlap in native range, but can escape from collections or be introduced for hunting; all lack the diagnostic black-streaked necklace of Red-legged. Song is a dry, rasping “wa-cha-cha-wa-cha-cha” or “wi’ch-ch’ch.”
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