Buff-thighed Puffleg
Haplophaedia assimilis
Smallish green hummingbird with a thin, very straight bill. Its legs are covered by puffs of fluffy cream-colored feathers, and its fairly long tail is iridescent navy blue. Females are similar to males but with grayer bellies. Shorter-billed than the similar lancebills. Found in the understory and mid-story of humid montane forest.
识别特征
The buff-thighed puffleg is 9 to 10 cm (3.5 to 3.9 in) long and weighs 5 to 6 g (0.18 to 0.21 oz). It has a straight blackish bill. Adults of both sexes of the nominate subspecies are mostly dark green and have a slightly forked blue-black tail. Their namesake leg puffs are creamy buff to whitish. H. a. affinis is a darker green overall and has a bluer tail; its leg puffs are pale rufous. Juveniles are like adults with the addition of brown fringes on the feathers of the head and neck.
分类信息
The buff-thighed puffleg was for a time considered to be a subspecies of greenish puffleg (H. aureliae) but was then returned to full species status. As of early 2022 it is again under consideration for reinclusion in H. aureliae but the proposal does not have much support. It has two recognized subspecies, the nominate H. a. assimilis and H. a. affinis.
- 学名
- Haplophaedia assimilis
- 命名信息
- (Elliot, DG, 1876)
- 目
- Caprimulgiformes
- 科
- Trochilidae
- 属
- Haplophaedia
分布与栖息地
Subspecies H. a. affinis of the buff-thighed puffleg is the more northerly of the two. It is found on the eastern slope of the Andes in northern and central Peru. The nominate H. a. assimilis is found from the eastern Andean slope of Peru's Department of Cuzco southeast into central Bolivia as far as Cochabamba Department. It inhabits the undergrowth and edges of humid to wet pre-montane forest. In elevation it ranges between 1,500 and 3,000 m (4,900 and 9,800 ft) but seldom occurs above 2,500 m (8,200 ft).
- 迁徙
- Resident species
行为
The buff-thighed puffleg is thought to seasonally disperse to the lower parts of its elevational range.<p>The buff-thighed puffleg mostly feeds near the ground, taking nectar from small groups of flowers. It is territorial and defends clusters of flowering bushes. In addition to nectar, it feeds on insects that it usually gleans from leaves but occasionally catches by hawking from a perch.<p>Almost nothing is known about the buff-thighed puffleg's breeding phenology. It is known that the female alone incubates the clutch of two white eggs.<p>What is thought to be the buff-thighed puffleg's song is "a repeated single strident note 'tsuk...tsuk...tsuk...'... occasionally interspersed by a double-noted 'tsi-tsuk'". It also makes "a dry rattle and some chattering notes in series."
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Golden Parakeet
Guaruba guarouba
Remarkable Brazilian parakeet whose golden-yellow plumage and green flight feathers match the national flag. Found in humid forest, old second growth, and seasonally flooded forests. May also be encountered flying in noisy groups over neighboring agricultural areas.
Thick-billed Seed-Finch
Sporophila funerea
Small seed-eating bird of humid tropical lowlands; uncommon. Found in damp grassy areas, overgrown weedy fields, and forest edges, often in areas with scattered bushes and small trees. Usually seen singly or in pairs, not usually in flocks with other seed-eating birds. Male plumage same as male Variable Seedeater in Mexico—black with a small white wing patch, but note very thick bill (not small and stubby). Female rich brown overall, with thicker bill than similar female Blue Bunting.
White-breasted Parrotbill
Paradoxornis ruficeps
Chunky parrotbill with a large head and a relatively short tail. Very similar in appearance to Rufous-headed and Pale-billed Parrotbills, but note brighter coloration and whiter underparts. Forages in small flocks, often with other species, in foothill forest bamboo clusters; also in reedbeds and tall grass. Song is a descending series of 4-5 whistles: “wee-dee-dee-dee-dee.” Calls include a loud, sputtering machine-gun chatter.
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