Bolivian Tyrannulet

Zimmerius bolivianus

Small, pale olive-gray flycatcher. Found across a wide elevational range from montane forest all the way up to elfin forest and scrub around the treeline. Perches horizontally, holding its head up; has a pale eye and lacks wingbars. Very pale belly helps distinguish it from the similar Red-billed Tyrannulet, which has a yellow belly and which overlaps with Bolivian at the lower part of Bolivian’s elevational range. Bolivian’s call is a single, descending whistle.

分类信息

学名
Zimmerius bolivianus
命名信息
(d'Orbigny, 1840)
Passeriformes
Tyrannidae
Zimmerius

分布与栖息地

迁徙
Resident species

保护状况

种群趋势
stable

照片

分布

鸟叫声

其他鸟类

Blue-fronted Redstart

Blue-fronted Redstart

Phoenicurus frontalis

Male is unmistakable, with his orange breast, belly, and tail and ultramarine-blue head and back. Female is brown with no wingbars and an orange tail and lower belly; watch out for the unique upside-down black ‘T’ on her tail. The species breeds in brushy open subalpine areas and winters in foothills in scrubby areas, field edges, and gardens. Like many other redstarts, often perches visibly, bobbing tail up and down. Song is a series of pleasant warbles and bubbly buzzing. Calls include a distinctive wet ticking, often preceded by a quiet whistled note. 

Little Rock-Thrush

Little Rock-Thrush

Monticola rufocinereus

A small rock-thrush with blue-gray upperparts and hood and an orange belly. The tail has a black-and-orange “T” pattern that is conspicuous in flight. Males and females vary slightly: males are cleaner blue-gray above, while females are more brownish. Found locally in a variety of habitats with a mix of rocks, trees, and bushes. Sometimes also on and around human structures. Similar to redstarts, but easily distinguished by the clean gray hood and the lack of black on the face. Also similar to male Rufous-tailed Rock-Thrush, but smaller, lacking white on the back, and with a more extensive gray hood. The quiet song consists of musical phrases that can be short or quite long. 

Sharpe's Longclaw

Sharpe's Longclaw

Macronyx sharpei

A small, pretty member of the pipit family. Note the yellow underparts, the breast band of black streaks, and the scaly brown upperparts. Males and females are similar, but females are duller. The white edges of the tail are conspicuous in weak, fluttering flight. Found on the ground in montane grassland, often in wet areas. Similar to Yellow-throated Longclaw, but there is little overlap in range, and Sharpe’s is separated by being much smaller and having a streaky rather than solid black breast band. Brownish immatures can be confused with pipits, but show some pale yellow below. The song is a series of musical whistles in an up-and-down pattern, given from a perch or in flight. The calls include a sharp “siit” and a longer, metallic “chweee.” 

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