Gray Go-away-bird
Crinifer concolor
Unusual gray turaco with a long tail and towering crest. The flight is hesitant, and the tail flops up and down. Usually in small groups, which often perch up conspicuously on trees and bushes. The calls include a series of grumpy yelps, and the classic nasal “go-waaay” call. Similar in shape to other go-away-birds, but there is little overlap in range, and easily separated by the uniformly gray coloration.
识别特征
The sexes are similar. They measure 47–51 cm from bill tip to tail tip, and weigh some 200 to 300 g. They have an almost uniform smoky-grey plumage with long tails and (similar to mousebirds) a wispy, back-swept crest of some 6 to 7 cm in length. The crest can be raised almost vertically when excited. The strong, decurved beak is black and the gape and tongue strikingly pink. The plumage is darkest grey on the chin and throat, and palest around the eyes and on the belly. The breast plumage is washed slightly olive like that of its near relative, the bare-faced go-away-bird.
分类信息
The grey go-away-bird was formally described in 1833 by the Scottish zoologist Andrew Smith from specimens collected inland from Port Natal (now Durban) in South Africa. He coined the binomial name Corythaix concolor. The specific epithet concolor is Latin meaning "uniform", "similar in colour" or "plain". The grey go-away-bird is now placed in the genus Crinifer that was introduced by the Polish zoologist Feliks Paweł Jarocki in 1821.<p>Four subspecies are recognised:
- 学名
- Crinifer concolor
- 命名信息
- (Smith, A, 1833)
- 目
- Musophagiformes
- 科
- Musophagidae
- 属
- Crinifer
分布与栖息地
It is native to southern Angola, southern DRC, Zambia, southern Tanzania, Malawi, Mozambique, Namibia, Botswana, Zimbabwe, South Africa and Eswatini. It occupies any arid to moist, and relatively open savanna woodlands, especially where Acacia trees are present. They frequent the edges of miombo woodland, and occur commonly along water courses, dry riparian forest and in Acacia woodland on alluvium. It also occurs commonly on farms and in suburban gardens and parks. They require water, and disperse along tributaries of desert rivers when water flows. It is absent from areas that lack suitable fruiting trees, and seems to desert areas where woody plant encroachment occurs. They have no regular migrations, but wander about irregularly in search of food and water.
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: stable.
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Bare-eyed Ground Dove
Metriopelia morenoi
Medium-sized, terrestrial dove of the high Andes in NW Argentina. Note bright orange-red facial skin and plain wings. From other ground doves in range by plain wings and extensive bare skin around the eye. Prefers rocky slopes and grasslands, but fairly tolerant to human settlements.
Great Rufous Woodcreeper
Xiphocolaptes major
Very large woodcreeper with a massive, robust bill. Plumage is rather uniformly cinnamon with some faint streaking on the breast. Note the black lores. Found in dry forest, woodland, and gallery forest. Sings a slightly descending series of double notes: “hick-up, hick-up, hick-up.” Other woodcreepers within its range are much smaller, with streaked or spotted plumage.
Amazonian Elaenia
Myiopagis cinerea
Small flycatcher of rainforest canopy. Gray male is fairly distinctive with his black wings and bold, white wingbars. Female is clad in shades of yellow and olive and has yellowish wingbars. She is very similar to Forest Elaenia and Yellow-crowned Elaenia, but has paler and cleaner underparts, and usually stays higher up in the trees. Also very similar to Gray-headed Elaenia, but note its more northern range. In areas where their ranges meet, identification may have to be confirmed by voice, though Amazonian Elaenia usually shows a dark (not white or yellow) eye. Typical song is a rapid, descending trill. Pairs are typically seen very high in the forest, and often follow mixed species flocks.
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