Rufous-headed Chachalaca
Ortalis erythroptera
Large chickenlike bird with a long tail. No similar species in limited range; much smaller than Crested Guan and warmer brown than Sickle-winged Guan. Note contrasting reddish-brown head; wings and tail also rufous but more easily visible in flight. Nearly endemic to Ecuador, but occurs in extreme southwestern Colombia and northwestern Peru. Look for pairs or small groups in the mid-levels of forest and edge, up to around 1,800 m. Like other chachalacas, has a very raucous and exceptionally annoying voice.
识别特征
The rufous-headed chachalaca is 56 to 66 cm (1.8 to 2.2 ft) long and weighs 620 to 645 g (1.4 to 1.4 lb). It has a rufous head and neck and gray-brown back. The central tail feathers are dark gray and the outer ones gray near the body and chestnut on their outer halves. The lower breast and belly are creamy white. The primary flight feathers are bright chestnut. Its brown eye is surrounded by bare bluish gray skin. The legs are pale blue.
分类信息
The rufous-headed chachalaca is monotypic.
- 学名
- Ortalis erythroptera
- 命名信息
- Sclater, PL & Salvin, 1870
- 目
- Galliformes
- 科
- Cracidae
- 属
- Ortalis
分布与栖息地
The rufous-headed chachalaca is found in extreme southwestern Colombia, extreme northwestern Peru, and in several small to medium-sized areas in western Ecuador. It inhabits dry, but not arid, deciduous forest and cloudforest in the coastal zone and Andean foothills. There are unconfirmed reports from savannah and brushy habitats. In elevation it generally ranges from sea level to 1,390 m (4,560 ft) but has been seen as high as 1,850 m (6,070 ft) and heard near 2,500 m (8,200 ft).
- 迁徙
- Resident species
行为
The rufous-headed chachalaca typically forages in groups of two to seven. Its known diet is only fruit but it may also include leaves.<p>The rufous-headed chachalaca's breeding season appears to parallel the January to May rainy season. Captive birds lay clutches of three eggs.<p>The rufous-headed chachalaca is most vocal from before dawn into the early morning. Its principal call is a "raucous, repeated 'kwak-ar-ar-ar', 'cha-cha-kaw' or shriller 'kra-kra-kra'", and is usually initiated by the male. Pairs give several calls "including a soft cooing or clucking, [a] harsh 'cow', and [a] fast, repeated 'kawuck'."
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Yellow-lored Bristlebill
Bleda notatus
An unusual and colorful rainforest bulbul. The upperparts are dark olive-green and the underparts yellow. Note the bright yellow patch between the bill, the brown eye, and the yellow spots on the tail corners. Found in the understory of rainforest and lush secondary habitat. Sometimes joins mixed-species flocks and follows ant swarms. Similar to Red-tailed Bristlebill, but easily separated by the green tail and the yellow spot on the face. The calls are chirpy notes typical of bulbuls, and the song is a variable descending series of melancholy whistles.
Kilombero Weaver
Ploceus burnieri
A fairly small and slim weaver with a relatively slender bill. Breeding male is distinctive, with bright yellow overall plumage and a black-and-chestnut bib. Females and non-breeding males are much duller, but show streaking on the back and usually a pale base to the dark bill. Found in a small range in central Tanzania, in reedbeds along rivers, often in flocks. Nests colonially. Plumages other than the breeding male’s can be hard to separate from other weavers, especially Vitelline Masked-Weaver, but can be cautiously identified by their dark back, by their less yellow overall coloration, and by range. Vocalizations are typical of weavers: “chek” notes and a sizzling “radio static” song.
Acre Antshrike
Thamnophilus divisorius
Secretive, rare medium-sized antshrike of the dense forests of the Cordillera Divisor of remote western Brazil and eastern Peru. Males are dark gray with a bluish tint to the back and upperparts, while females are bluish-gray above and brownish-orange below. Inhabits the lower levels of forests, where it is more often heard than seen; voice is a fast series of notes increasing in speed before finishing with a final higher note.
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