Bearded Wood-Partridge
Dendrortyx barbatus
Very elusive, chickenlike bird of humid evergreen forest in foothills and highlands; scarce and very local in eastern Mexico where it is endemic. Usually in pairs or small groups on the forest floor. May be seen beside quiet trails and roads early and late in the day; runs away quickly and rarely flies. Note the blue-gray face and throat, red bill and eyering, and rusty breast. Loud rollicking songs are given mainly early and late in the day and most often reveal its presence.
识别特征
The bearded wood partridge is 33 to 35.5 cm (13.0 to 14.0 in) long and weighs between 405 and 459 g (14.3 and 16.2 oz). Adults have bluish gray cheeks, neck, and upper chest. There is a red patch around the eye. The crown is buff and has a small crest. The nape and chest are cinnamon, with red striations on the nape and sides of the chest. The back is a mix of buff, browns, and grays. Immatures are similar to the adults but their chest is duller and the flanks have brown bars.
分类信息
The bearded wood partridge shares the genus Dendrortyx with two other species, all of which appear to be quite distinct from each other. It is monotypic.
- 学名
- Dendrortyx barbatus
- 命名信息
- Gould, 1846
- 目
- Galliformes
- 科
- Odontophoridae
- 属
- Dendrortyx
分布与栖息地
The bearded wood partridge has a discontinuous range in the central part of Mexico's Sierra Madre Oriental. The Santo Domingo River in northern Oaxaca and western slope of the Sierra Madre Oriental act as biogeographic barriers. It inhabits the interiors and edges of humid evergreen montane forest and pine-oak forest, both primary and secondary. It is also found in gardens and sometimes in farmland. It is often restricted to narrow riparian zones.
- 迁徙
- Resident species
行为
The bearded wood partridge forages on the ground. Its diet includes seeds, fruits, buds, tubers, and insects.<p>Little is known about the bearded wood partridge's breeding phenology. It is reported to breed between April and June. The male makes a dome-shaped nest with a tunnel entrance. The clutch size is usually five.<p>The bearded wood-partridge's song is "a series of loud, rollicking whistles, repeated rapidly and often given in duet". The sexes' songs are similar but the female's is quieter. The song is mostly given at dawn and dusk. Groups sing to maintain contact.
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Coal-crested Finch
Charitospiza eucosma
Handsome finch with a spiky crest. Males have a black band from the head to the center of the belly, a silver back, and brown-yellow underparts. Female lacks the black band. Occurs in savanna with shrubby areas and scattered trees, and also in caatinga habitat. Mostly forages on the ground, but also can be seen in low trees and bushes.
Gray Tit-Flycatcher
Fraseria plumbea
A gray flycatcher that has a distinctive blackish tail with white outer tail feathers. It forages more like a warbler than a typical flycatcher, flitting through foliage searching carefully for insects; seldom sallies to catch flies. Often it leans forward with its tail slightly raised and spread, a behavior that may flush insects nearby. It forages unobtrusively in broadleaf woodland, thickets, and forest edge, where it is most often detected by its trembling, mournful “wheeely-wheerr” song. The similar Gray-throated Tit-Flycatcher prefers lowland rainforest and has an all-dark tail and a plain gray face, while Ashy Flycatcher has an all-dark tail and hunts by perching and sallying like a typical flycatcher.
Gang-gang Cockatoo
Callocephalon fimbriatum
Small and compact cockatoo found only in southeastern Australia. Primarily scaly gray-green; adult male has bright red ‘helmet’ and fluffy crest. Typically moves to higher altitudes during summer and returns to lower ranges in winter. Gives a loud creaking door hinge call.
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