Little Ground-Tyrant
Syrtidicola fluviatilis
Small tan flycatcher of river beaches; terrestrial, or perches on low shrubs. Tan above, lighter whitish below, with a black tail with white outer tail feathers. Overlaps with the similar and often more common Drab Water Tyrant. Compared to that species, Little Ground-Tyrant has lighter underparts, no facial pattern (unlike the black eye line and pale eyebrow of Drab Water Tyrant) and white outer tail feathers contrasting with black inner tail feathers (as opposed to uniformly brown). They often flush and move in low flight along river banks, exposing their diagnostic tail patterns. Prefers wide, open beaches and mudflats along rivers to steep river banks. Known to wander when not breeding, when it can be found in a variety of open habitats.
分类信息
The little ground tyrant was formerly placed in the genus Muscisaxicola. A genetic study published in 2020 found that it was deeply divergent from other members of Muscisaxicola and was instead sister to the yellow-browed tyrant in the genus Satrapa. The little ground tyrant was therefore moved to a newly erected genus Syrtidicola.
- 学名
- Syrtidicola fluviatilis
- 命名信息
- (Sclater, PL & Salvin, 1866)
- 目
- Passeriformes
- 科
- Locustellidae
- 属
- Syrtidicola
分布与栖息地
The little ground tyrant is found in the southwest Amazon Basin at higher elevations in the Basins river headwaters. The largest area of range is in the east extending into central and northwest Bolivia, and east of the Madeira River; this entire south Amazon Basin–Bolivian region is much of the headwater tributaries to the Madeira.<p>From central Bolivia, the range extends north through Amazonian Peru, (only crossing the southwest border areas of Brazil's Amazonas state), and extends downstream on the Marañón River and Amazon River down a riverine wildlife corridor approaching the Juruá River confluence.<p>Disjunct range locales occur in Ecuador; the species has a restricted-range for the south border region of Colombia along the north shore of the Marañón River, about 150 km.
- 迁徙
- Resident species
行为
The little ground tyrant is an insect eater. These birds are often found on open bars on river islands as well as on open grassy areas. They are sandy gray-brown above with darker wings edged in buff-rust, a blackish tail, white superciliary, thin blackish bill, and off-white underparts. The little ground tyrant often perches conspicuously on the ground but rarely calls.
保护状况
- 种群趋势
- stable
照片
分布
其他鸟类
Mistle Thrush
Turdus viscivorus
Rather large thrush, gray-brown above and whitish below with rather rounded dark spots; tail has small white corners, lacking in appreciably smaller Song Thrush. In flight, looks rather pale and grayish overall, especially when compared with dark brownish Song Thrush. Found in a variety of wooded habitats, including parks and moorland with hedges and taller trees. Often feeds on larger lawns and grassy verges, often well away from cover. Sweet and rich-sounding warbled song is similar to that of Eurasian Blackbird, and very unlike Song Thrush. Dry rattle calls are distinctive.
Oriole Whistler
Pachycephala orioloides
A brightly colored songbird with a bright golden belly, a black hood and chest band, and an olive upperside and wings. Throat is a golden yellow. Population on Vella Lavella and Ranongga is mostly black with a golden throat, belly, and undertail. Birds on the Russell Islands are entirely golden, brighter below. Some birds on Guadalcanal are entirely cinnamon with a brownish “shawl” and a buffy belly. Mostly inhabits primary forest, but wanders into gardens and village edges. Voice includes a mix of flute-like whistles and squeaks with loud far-carrying whipcrack notes repeated.
Green-breasted Mango
Anthracothorax prevostii
Large, bulky hummingbird with slightly arched black bill. Favors forest edge and open areas with scattered tall trees. Often perches and feeds high in canopy, but also feeds low on occasions and will visit feeders. Male (some females similar) solidly dark, deep green overall with black throat, purplish tail. Female and immature have broad dark stripe down center of throat and breast, white tail corners. Immature also has rusty mottling along sides of throat and breast.
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