Scaly-breasted Thrasher
Allenia fusca
A drab-colored and inconspicuous species typically found from the middle level to the canopy in woodlands, where it mostly feeds on fruits. This species can be distinguished from similarly shaped and colored Pearly-eyed Thrasher by its short dark bill and barred, not streaked, underparts. Song is a deliberate series of high-pitched squeaks and lower-pitched whistles. Most common call is a high, thin whistle.
识别特征
The scaly-breasted thrasher is approximately 23 cm (9.1 in) long and weighs 53 to 98 g (1.9 to 3.5 oz) with an average weight of 67 g (2.4 oz). With its rather short and slightly decurved bill, this thrasher resembles a thrush. Adults of the nominate subspecies have a dark gray-brown head and upperparts with a reddish tinge on the rump. Their tail is a darker brownish black and its outer feathers have white tips. The folded wing shows a single white bar. Their chin and throat are whitish with brown streaks. The underparts are whitish and the chest and flanks have bold gray-brown markings that give the eponymous scaly appearance.<p>The other subspecies differ mostly in size and the intensity of their upperparts' color. A. f. hypenema is the largest and is paler than the nominate. A. f. schwartzi is mid-sized and has more white on its tail. A. f. vincenti is the smallest and is darker overall than the nominate. A. f. atlantica compared to the nominate is more reddish brown above and has less white in the tail.
分类信息
The scaly-breasted thrasher was originally placed in genus Margarops with the pearly-eyed thrasher (M. fuscatus) but is now in the monotypic genus Allenia. It has five subspecies:
- 学名
- Allenia fusca
- 命名信息
- (Müller, PLS, 1776)
- 目
- Passeriformes
- 科
- Mimidae
- 属
- Allenia
分布与栖息地
The subspecies of scaly-breasted thrasher are found thus:<p>The scaly-breasted thrasher primarily inhabits forest and semi-open woodland and is also found around human settlements.
- 迁徙
- Resident species
行为
The scaly-breasted thrasher forages in trees; on different islands it hunts at different levels from low down to high in the canopy. It is omnivorous; its diet includes arthropods, fruits, and berries. It appears to eat a larger percentage of vegetable foods than other thrashers.<p>The scaly-breasted thrasher breeds in May and June. It builds a cup nest in a bush or tree. The clutch size is two or three.<p>The scaly-breasted thrasher's song is a "[s]eries of varied notes and phrases" similar to that of Mimus mockingbirds but softer and slower.
保护状况
- 种群趋势
- unknown
照片
分布
鸟叫声
其他鸟类
Pale-blue Monarch
Hypothymis puella
A distinctive plain, all-blue flycatcher-like bird with a light blue bill. Male is handsome, azure blue, often showing a slim dark breast band. Female and juvenile are duller, gray-blue, and lack a breast band. Singles and pairs are active birds, often found in mixed-species flocks in forest and forest edge in the lowlands and into the lower foothills. Restricted to Sulawesi and the Banggai and Sula Islands. Varied calls include a ringing, “way-way-way-way…”, a rapid, agitated-sounding, stuttering “wi-wi-wi-wi-wi-wi…”, and rasping calls.
Magenta-throated Woodstar
Philodice bryantae
Tiny hummingbird with long tail often cocked up. Slow bumblebee-like flight. The only woodstar in its range. Male has purple throat and white collar, otherwise greenish with some orange tones on the flanks. Female more confusing but note small size and flight style; also orange flanks, dark cheek with white spot behind eye, and white patches on sides of rump. Feeds at small flowers at all levels of forest edge, also visits feeders.
Yungas Tyrannulet
Phyllomyias weedeni
Small flycatcher found along the east slope of the Andes in western Bolivia, barely reaching over the border into southern Peru. Note the stubby bill, indistinct wingbars, and white eyebrow bordered below by a dark eye-line. Similar to Sclater’s Tyrannulet, but lacks a white throat and has less prominent wingbars. Inhabits the canopy of humid forest, and typical song is a series of three to five descending, whiny whistles. Note that some vocally distinct birds found farther north in Peru as well in western Brazil may belong to this species, but pending further research, could also be a form of Sooty-headed Tyrannulet or something completely new.
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