Cinereous Tyrant
Knipolegus striaticeps
Medium-sized open country flycatcher of Chaco woodland and flooded grasslands in N Argentina, W Paraguay, and SE Bolivia. Male from other Knipolegus by, in male, all dark wingsand grayish (as opposed to deep black) plumage. Female told from other female Knipolegus by dull, indistinct streaks on underparts, brown cap, rufous rump, and dull reddish iris. Prefers exposed perches in open thorn forest, roadsides, agricultural lands, and towns.
分类信息
- 学名
- Knipolegus striaticeps
- 命名信息
- (d'Orbigny & Lafresnaye, 1837)
- 目
- Passeriformes
- 科
- Tyrannidae
- 属
- Knipolegus
分布与栖息地
- 迁徙
- Complete migrants
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类

Sooty Tit
Aegithalos fuliginosus
Active little bird with a chocolate-brown chest and a bright white collar. Forages in the lower and middle levels of foothill and montane forest in flocks, often with other species. Overall brownish coloration distinguishes it from similar small tits and bushtits. Like other bushtits, can often be inquisitive and confiding. Gives a trio of high, thin whistles, as well as occasional chatters and trills.

Mountain Buzzard
Buteo oreophilus
Medium-sized brown raptor of montane habitats. Shows thick dark brown streaking on the underparts. In flight, the underside of the wing is streaked brown at the front and solidly white at the back, with a rim of black. Found in mountain forest and adjacent open habitats. Often soars. The call is a piercing whistle. Very similar to the migratory Common Buzzard, but never shows red in the tail, and always has a pattern of heavy dark brown streaks below.

Gould's Frogmouth
Batrachostomus stellatus
Cryptic, seldom-seen nightbird of lowland and foothill forests. Unlike other small frogmouths, sexes are alike. Light morph is bright rufous with scattered white dots on the wings and mottled-white underparts. Dark morph is brown but with the same general patterning. Compare with Sunda Frogmouth: male Sunda is much more heavily marked with white above and has patchier markings on the underparts, while female Sunda has a prominent white band across the chest. Sumatran and Bornean Frogmouths inhabit higher elevations. Song is a loud “weeow-wah.” Calls include “weeow” and a rapid series of “wuk” notes that resembles a thrush’s alarm call.
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