Black-faced Antthrush
Formicarius analis
Elusive inhabitant of humid tropical lowlands and foothills. Walks like a small chicken (not like a thrush) on the shady forest floor, holding its tail cocked and tossing leaves with its bill. Loud song of accelerating hooting whistles is often heard, but birds can be very difficult to see. Dark overall with pale bluish eyering and black face bordered by dark rusty band.
识别特征
The black-faced antthrush is similar in general appearance to a rail, with a dumpy body, horizontal carriage, stout bill and short-cocked tail. It walks rather than hops, with a jerky motion reminiscent of a rail. It is typically 18–19 cm (7.1–7.5 in) long, and weighs 59 g (2.1 oz). The upper parts are rufous-brown, and the underparts are paler brown, except for the black face and throat, and rufous under the tail and behind the eye. The sexes are alike in plumage.
分类信息
The black-faced antthrush was formally described in 1837 by the French naturalists Alcide d'Orbigny and Frédéric de Lafresnaye from a specimen collected in Bolivia. They coined the binomial name Myothera analis. The specific epithet is from the Modern Latin analis meaning "relating to the undertail-coverts of the vent". The black-faced antthrush is now placed in the genus Formicarius that was introduced by the Dutch naturalist Pieter Boddaert in 1783.<p>Eleven subspecies are recognised:<p>The subspecies hoffmanni is sometimes recognised as a distinct species, the Panama antthrush, based primarily of its different song. The Mayan antthrush (Formicarius moniliger) was formerly considered conspecific with the black-faced antthrush.
- 学名
- Formicarius analis
- 命名信息
- (d'Orbigny & Lafresnaye, 1837)
- 目
- Passeriformes
- 科
- Formicariidae
- 属
- Formicarius
分布与栖息地
It is a common and widespread forest bird in the tropical New World, from Honduras through Central America to the northern regions of South America. It occurs in Colombia, Venezuela, Trinidad and Brazil, and the Amazon Basin, except for the northwest region.
- 迁徙
- Resident species
行为
The antthrush builds a leaf-lined nest in a cavity in a hollow branch or stump where two white eggs are laid. It is an insectivore which feeds on ants and other insects. It is quite terrestrial, feeding mainly on the ground. It will follow columns of army ants. The call is a loud whistle followed by 2–10 descending whistles, WHU! wu-wu-wu-wu-wu-wu-wu-wu-wu.
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Schrenck's Bittern
Botaurus eurhythmus
Small heron, usually found in reed beds, expansive marshes, and rice fields; can occasionally be found in parks with sheltered areas, particularly lotus ponds and shaded pools. Generally uncommon throughout its range; never in the high densities of Yellow Bittern. Male is smartly attired, with a black cap, brown back, and a white neck and breast with a dark line extending down from the throat. Female is darker, with fine white spotting on the back and pale brown streaks on the throat. Compare with Cinnamon Bittern. Males give a gruff “roof, roof, roof” on the breeding grounds.
Iberian Chiffchaff
Phylloscopus ibericus
Pale yellowish warbler, very similar to Common Chiffchaff. Best separated by consistently different song (slower than that of Common Chiffchaff, and often three-parted) and by call (often gives a falling “dwee” instead of a rising “weet”), but note yellower belly, longer and brighter eyebrow, and longer wings than Common Chiffchaff. Typically found in native woodlands during breeding season in Iberia and Morocco, migrating to West Africa in the nonbreeding season, where also uses open woodlands, tamarisks, and acacia scrub.
Okinawa Rail
Gallirallus okinawae
A candy-red bill, curving white head stripe, and lacey black-and-white striping make this a unique and attractive species. Found only in and around the Yanbaru Forest on Okinawa Island, where it forages on the forest floor, often in pairs or small flocks. Most frequently seen as it crosses roads, trails, and clearings. Gives a variety of different calls, typically given during dusk, dawn, or nighttime hours. All are somewhat terrifying, a medley of shrill yelps, high-pitched squeals, and a laughter-like clattering.
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