Azure-rumped Tanager
Poecilostreptus cabanisi
Small, very local tanager of humid Pacific-slope foothills in Chiapas and Guatemala. Found in evergreen forests and adjacent shade-coffee plantations. Usually in pairs or small groups that forage at all levels, but often in the canopy of taller trees. Sexes look alike: pale bluish overall with contrasting black shoulders and black spotting across the breast. In good light, varied lilac, green, and turquoise sheens are apparent on the upperparts.
识别特征
Its plumage is mostly pale blue, with a purplish-blue crown, distinctive dark spots across the chest, dark lores and lower auriculars. The mantle is mottled greenish-blue and black. The wings and tail are black with blue edgings. The bill is gray with a dark tip. Cabanis's tanagers utter several sibilant vocalizations, hard trill and twitters.<p>The azure-rumped tanager is omnivorous, feeding on fruit and arthropods. In Guatemala, abundance was positively correlated with the density of Ficus aurea trees. Figs of that tree are a main food source. The nesting season ranges from April to September, during which azure-rumped tanagers move in pairs or family groups. Cooperative breeding has been reported. Outside the breeding season, larger flocks of up to 18 birds have been reported.<p>The azure-rumped tanager is Vulnerable because of deforestation to clear the way for coffee plantations. In Guatemala, only 21% or 25,000 ha (62,000 acres) of the potential area of distribution are still covered with broadleaf forest, the tanager's prime habitat. 80000 ha or 68% of the potential area of distribution is covered with coffee plantations. It is estimated that there are 8250–23250 birds left in Guatemala. For Chiapas, there is no recent estimate, but in the 1980s there were 112000 ha of suitable habitat, which is expected to be much smaller now due to a growing human population and increased pressure by agricultural activities<p>Its closest relative appears to be the similarly patterned grey-and-gold tanager.
分类信息
- 学名
- Poecilostreptus cabanisi
- 命名信息
- (Sclater, PL, 1868)
- 目
- Passeriformes
- 科
- Picidae
- 属
- Poecilostreptus
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
Kenrick's Starling
Poeoptera kenricki
A small, slim dark starling. The eyes are brown, and females show chestnut patches in the wings in flight. Found in the canopy of montane forest, mostly at middle elevations, usually in small flocks which frequently gather at fruiting trees. Perches out conspicuously on dead snags and other open perches. Similar to Waller’s Starling, but smaller and slimmer, with brown rather than red eyes, and only females have reddish wing patches. Very similar to Stuhlmann’s Starling, but separated by range. The most common call is a simple “tweep.” Also gives a subdued chattering.
Gray-headed Sunbird
Deleornis axillaris
An odd warbler-like sunbird with a long, only slightly downcurved bill. Mostly olive-green with a gray head and a pale throat. Males have a small red tuft at their shoulder that is usually hidden. Found in rainforest at low and middle elevations, mostly in thick growth at middle levels. Similar to longbills, but more olive-green than Gray Longbill and less yellow below than Yellow Longbill. Vocalizations include a rising and falling twittering as well as dry “tip” notes.
Kinglet Manakin
Machaeropterus regulus
Chunky little, short-tailed bird of lowland and foothill forest. Male is distinctive with bright red crown and bold white stripes on reddish belly. Female lacks red crown but shows faint streaking on sides unlike any other manakin. Inconspicuous; elaborate display dance infrequently seen. Found in the lower to middle levels of forest. Listen for its strong “chew” call.
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