Gray-crowned Flatbill

Tolmomyias poliocephalus

Small, stocky flycatcher with broad, flat bill. Occupies canopy and midstory of forest edges, gardens, and tall second growth in humid lowlands. Has gray crown, pale yellow underparts, and yellow edgings to wing feathers (but not wingbars). Very similar to a few other species of flycatchers, particularly Yellow-margined and Yellow-olive Flycatchers; best distinguishing features include its pale eye, lack of a yellow patch at the base of the primaries, and voice. Call is a loud, quickly rising whistle: “tuee?”, higher and cleaner than similar calls from species like Brownish Twistwing and Blue-backed Manakin, but not as high as the “twee-twee” of Purple-throated Euphonia.

识别特征

Tolmomyias flatbills are robust small birds with broad beaks. The grey-crowned flatbill is about 12 cm (4.7 in) long and has a generally yellowish-green plumage, a grey cap and nape, and a yellowish throat marked with grey. The iris is usually a pale colour and the mandible has a dark tip. Several species of flatbill overlap in their range and are easily confused with each other visually, but their songs are mostly distinctive. The grey-crowned flatbill's song is a series of whistles rising in pitch with the final whistle trembling – "tuee? tuee? TUEE? tuEEuEE? tuEEuEE?". The only other similar song in the genus is that of the yellow-margined flatbill (Tolmomyias assimilis) which has a more rasping quality; flatbills in this genus are difficult to tell apart and the voice is usually the best means of recognition. The stance of this species is more horizontal than other members of the genus, and it sometimes cocks its tail.

分类信息

学名
Tolmomyias poliocephalus
命名信息
(Taczanowski, 1884)
Passeriformes
Tyrannidae
Tolmomyias

分布与栖息地

The grey-crowned flatbill is native to the Amazon region of South America. Its range includes Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname and Venezuela. Its maximum altitudinal range extends to 1,000 m (3,300 ft) or locally higher. It generally inhabits the middle and upper canopy of the rainforest as well as forest edges, river valleys and tall secondary forest growth. The nest is shaped like a bag and has a tubular entrance near the base; it is often hung near a wasp nest.

迁徙
Resident species

保护状况

种群趋势
stable

照片

分布

鸟叫声

其他鸟类

Slender-billed Scimitar-Babbler

Slender-billed Scimitar-Babbler

Pomatorhinus superciliaris

Possibly the species to which the moniker of “scimitar-babbler” attaches most fittingly, as this inhabitant of high-altitude evergreen forests has a bill shaped like a curved sword. Predominantly orange-brown, with a gray head and jagged white eyebrow. Easily identified, even if seen only in silhouette; no other babbler in its range has such a long, sharply curved bill. Moves through the lower levels of the forest in large, noisy flocks.

Eurasian Treecreeper

Eurasian Treecreeper

Certhia familiaris

An inconspicuous little bird (plumage blends well with bark) of woods, forests, and gardens with larger trees. Usually seen as singles or pairs, creeping along trunks and branches using its tail for support, like a mini-woodpecker. Probes in crevices for insects and spiders, and often spirals up then drops to low on the next tree and spirals up again. In areas where Short-toed Treecreeper also occurs, the two species are often not safely distinguished without considerable experience; look for “uneven steps” on the wing, whiter sides, and slightly shorter bill. Listen for high, thin “tseee”s and trills. Song is a lovely series of falling whistles, typically preceded by short trills and concluded with a flourishing rising whistle.

Common Rosefinch

Common Rosefinch

Carpodacus erythrinus

Medium-sized, dumpy finch with a stubby bill. Male are distinctive with a red head, breast, and rump, brown eye-mask, and white belly. The amount of red varies with age. Females and juveniles are a rather unprepossessing, uniform brown inviting confusion with female House Sparrows; note the two pale wingbars. Breeds at both low and high elevations in deciduous scrub, meadows, and marsh edges as well as clearings in forest. Far-carrying, whistled, typically 3-note song is memorable.

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