Transvolcanic Jay
Aphelocoma ultramarina
Rather large, blue-and-gray jay of highland pine and pine-oak forest endemic to highlands of central Mexico; occurs in transvolcanic belt from Volcánes de Colima in the west to Volcán Orizaba in the east. Typically travels in wide-ranging flocks of 5–25 birds, mainly at middle to upper levels in trees. Appreciably larger and broader-winged than Woodhouse's Scrub-Jays, with plainer plumage (lacks dark mask, whitish eyebrow, and partial dark collar of Woodhouse's Scrub-Jay). Noisy calls carry well.
识别特征
It is a medium-large (~120 g) passerine bird similar in size to most other jays, with a blue head, blue-gray mantle, blue wings and tail, gray breast and underparts. The sexes are morphologically similar, and juveniles differ only in having less blue coloration. The iris is brown and legs are black. It is most readily distinguished by the plain (unstreaked) throat and breast, and the mantle contrasting less with the head and wings.
分类信息
A 2011 decision by the American Ornithologists' Union Check-list Committee treats some populations of the Mexican jay as a separate species, called the Transvolcanic jay (A. ultramarina), based on diagnosable phenotypic differences in plumage and morphology, millions of years of genetic divergence, and no evidence for interbreeding with Mexican Jays. The Transvolcanic jay inhabits montane forest in the Transvolcanic Belt of central Mexico. Populations to the north retained the common name Mexican jay, but their Latin name changed to A. wollweberi because the Transvolcanic jay is the original A. ultramarina.
- 学名
- Aphelocoma ultramarina
- 命名信息
- (Bonaparte, 1825)
- 目
- Passeriformes
- 科
- Corvidae
- 属
- Aphelocoma
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

Rufous-crowned Prinia
Prinia khasiana
Very long-tailed prinia of hilly and montane areas, descending to foothills in winter. Note rufous crown, warm brown upperparts and sides, and gray cheeks and pale belly. Breeding adult’s white moustache stripe, black throat and chest are unmistakable. Non-breeding has prominent white brow, pale throat, and finely streaked chest. Favors scrubby, open areas. Non-breeding plumage somewhat similar to Striated Prinia, but Rufous-crowned has unstreaked upperparts and white eyebrow. Song is a repetitive series of “plik” notes. Call is a mournful, descending “piuu”.

Guianan Cock-of-the-rock
Rupicola rupicola
A large, chunky cotinga, always preceded by its reputation. Exquisite adult male is impossible to mistake for anything else; young males and females are brown and best identified by size, odd shape and pale eyes. Most readily found in lowland rainforest near rock formations that provide nest sites. Often seen flying across small rivers or roads, but generally difficult to observe away from display areas. Feeds on fruit. Calls, occasionally given in alarm and while foraging, are querulous and fowl-like.

Belted Flycatcher
Xenotriccus callizonus
Small crested flycatcher found locally in subtropical woodlands and thickets in foothills and highlands; often in areas with bamboo. Usually rather retiring and well hidden in vegetation, but when singing can be more conspicuous. Note the spiky crest, white teardrop eyering, broad orange belt across the breast, and rusty wingbars. No similar species in its limited range.
开始您的观鸟之旅
在户外识别鸟类,并在下一次观察时随手查阅鸟类图鉴。