Yellowish Flycatcher
Empidonax flavescens
Small greenish and yellowish flycatcher of humid highland forests. Usually found singly, at all levels inside the forest and at edges, sallying for insects. When perched, often flicks tail upwards. Note the peaked crest, teardrop-shaped eyering, overall plumage coloration, and very high-pitched call and song phrases. Range does not overlap with very similar Pacific-slope and Cordilleran Flycatchers, but compare with migrant Yellow-bellied Flycatcher that occurs mainly in lowlands and has a distinctly different call).
识别特征
The yellowish flycatcher is 12.5 cm (4.9 in) long and weighs 12 g (0.42 oz). Its upper parts are olive-green and the underparts are yellow with an ochre tint to the breast. The wings are blackish with two buff wing bars. It has a white eye ring broadening into a small triangle behind the eye. Sexes are similar, but young birds are browner above and paler yellow below. The call is a thin seeep and the dawn song is a rapid repeated seee seee chit.<p>This species needs to be distinguished from migratory Empidonax species, since several species, including willow, alder and Acadian flycatchers pass through in the autumn. It has a more prominent eye ring than any migrant species, and despite that species’ name, is yellower below than yellow-bellied flycatcher.
分类信息
- 学名
- Empidonax flavescens
- 命名信息
- Lawrence, 1865
- 目
- Passeriformes
- 科
- Tyrannidae
- 属
- Empidonax
分布与栖息地
This species is found in cool mountain forest, especially at the edges, in clearings, along roadsides and near streams, and in second growth and bushy pastures. It breeds from 800 m (2,600 ft) to nearly 2,500 m (8,200 ft) altitude.
- 迁徙
- Resident species
行为
The deep cup nest is made of plant fibre and mosses, and placed 2–4.5 m (6.6–14.8 ft) high in a crevice in a tree trunk or earth bank. Nests are often in moss near streams. The typical clutch is two or three white eggs, marked with pale rufous speckles. Incubation by the female is 14–15 days to hatching, with another 17 days to fledging. They accept the eggs of brood parasites, and are therefore occasionally hosts of the bronzed cowbird. Yellowish flycatchers are active birds, usually seen alone when not breeding.<p>They eat insects, spiders and some small berries. Nestlings are fed exclusively insects, especially spiders. The prey is gleaned from the foliage, taken in flight in short sallies, or sometimes picked from the ground.
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Blue-breasted Fairywren
Malurus pulcherrimus
Small bird with a very long blue-gray tail held cocked, found from southwestern Western Australia to the Eyre Peninsula of South Australia, where it prefers coastal heath and drier woodland areas. Breeding male has a bright blue helmet, bluish-black breast, blue patch on back, and chestnut shoulders. Female grayish overall, with long blue-gray tail and reddish bill. Nonbreeding male resembles female but has black bill and narrow pale eyering.
Ayres's Hawk-Eagle
Hieraaetus ayresii
Small black-and-white eagle. Has a compact, powerful shape, and the hint of a crest. The upperparts are black, and there are heavy black markings on the underparts and evenly across the underwing. Found in thick woodland and forest. Soars frequently. Call is a loud, repeated “kwee-ya.” Similar to other hawk-eagles, but has more heavily marked underparts. Easily separated in flight, when Ayres’s Hawk-Eagle shows black barring across the entire underwing.
Green-and-gold Tanager
Tangara schrankii
Small green tanager of lowland rainforest. Looks mostly green with a black mask and yellow belly. Sexes alike. One of the most common mature forest tanagers and a regular member of mixed-species flocks. Regularly seen both high in the canopy and lower inside the forest understory.
开始您的观鸟之旅
在户外识别鸟类，并在下一次观察时随手查阅鸟类图鉴。