Purple-winged Roller
Coracias temminckii
A distinctive big-billed bird that is entirely deep purple in color except for a conspicuous sky-blue cap and rump. Juvenile has a duller cap and browner underparts. Sits upright. Prefers open country near wooded and forested areas, where it is most often seen perched high on prominent dead branches, usually singly or in pairs. Occurs in both lowlands and foothills. Gives a harsh, dry grating call, “ka-ka-ka-ka…”, and sometimes also a single “chowwEER.”
识别特征
The purple-winged roller is 30–34 cm (12–13 in) in length, similar in size to the Eurasian jay. The cap and upper-tail coverts are bright azure blue, the back is dark-olive, with the rest of the plumage mainly dark blue. The large bill is black. The sexes are alike. Juveniles are similar to the adults but with duller plumage.
分类信息
The purple-winged roller was formally described in 1819 by the French ornithologist Louis Pierre Vieillot under the binomial name Garrulus temminckii. The specific epithet was chosen to honour the Dutch ornithologist Coenraad Jacob Temminck. The type locality is the island of Sulawesi. The purple-winged roller is now one of nine species placed in the genus Coracias that was introduced by Carl Linnaeus in 1758. A molecular phylogenetic study published in 2018 found that the purple-winged roller was most closely related to the Indochinese roller (Coracias affinis).<p>The phylogenetic relationships among the Coracias species are shown below, from the molecular study by Johansson et al. (2018)<p>Alternate names for the purple-winged roller include the Celebes roller, Sulawesi roller, and Temminck's roller.
- 学名
- Coracias temminckii
- 命名信息
- (Vieillot, 1819)
- 目
- Coraciiformes
- 科
- Coraciidae
- 属
- Coracias
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
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Small, oblong-shaped seabird. Breeding plumage mottled brown; darkness varies, but often shows golden tint. Nonbreeding plumage dark gray above and white below, with a white face and large white wing patch. Nests in crevices in rocky scree slopes, particularly around glaciers; forages in coastal glacial outflows. Similar to Marbled and Long-billed Murrelets, but with shorter bill and white outer tail feathers; breeding birds average paler with speckled back, while nonbreeders show white on face extending above the eye.
Black-bellied Tanager
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Found only in northern Peru, where it mostly replaces the very similar Silver-beaked Tanager in several river valleys in the foothills of the eastern Andes. Male is distinguished by his bright red sides and rump. Females of the two species are almost identical, though Black-bellied tends to be brighter red and have a darker throat. Inhabits lightly wooded areas and forest edge.
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