Buff-fronted Quail-Dove
Zentrygon costaricensis
Plump ground-dwelling dove, quite bright and colorful compared with other quail-doves. Body is grayish, wings are rich brownish-purple, and nape is suffused with iridescent green. Like many quail-doves, face is whiter with dark mustache line, but note buffy forehead. Pinkish-red legs. Sexes alike. Prefers forests, usually on the ground unless flushed up into the lower levels of a tree. Like most quail-doves, often best seen by quietly walking along trails at dawn and dusk.
识别特征
The buff-fronted quail-dove is 24 to 28 cm (9.4 to 11.0 in) long. Two males weighed 310 and 330 g (11 and 12 oz) and two females 225 and 283 g (7.9 and 10.0 oz). The adult's head, neck, and breast are medium gray, the nape and upper back have a green tinge while the belly grades to brownish. The back, wings and tail are maroon. The head has a distinct pattern of light gray cheeks bordered above and below by narrow black stripes that extend just past the eye, as well as the namesake buffy forehead ("front"). The eye is brown surrounded by a slim but noticeable red ring, the legs are bright coral-red, and the bill is dull brown with a reddish cast at the base. The juvenile's crown and nape are dusky gray with a green gloss. Its upperparts are dull chestnut with indistinct dusky bars and cinnamon tips to the feathers. Its underparts have gray and cinnamon bars and freckles and the belly is buff.
分类信息
The buff-fronted quail-dove was originally described in genus Geotrygon, later placed in genus Oreopeleia, and still later in its present Zentrygon. Its relationships with the other members of its genus have not been fully resolved. The buff-fronted quail-dove is monotypic.
- 学名
- Zentrygon costaricensis
- 命名信息
- (Lawrence, 1868)
- 目
- Columbiformes
- 科
- Columbidae
- 属
- Zentrygon
分布与栖息地
The buff-fronted quail-dove is a year round resident from northern Costa Rica's Cordillera de Guanacaste southeast into western Panama as far as Veraguas Province. It inhabits the Talamancan montane forest ecoregion. In elevation it ranges from 1,000 to 3,000 m (3,300 to 9,800 ft) in Costa Rica and from 1,200 to 3,000 m (3,900 to 9,800 ft) in Panama.
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: declining.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
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Nyctidromus anthonyi
Brown-and-buff nightbird found in arid scrub and deserts in western Ecuador and northwestern Peru. It is dark brown, heavily mottled with buff, and has a white throat. In flight, it has white crescents near the wingtips and white stripes along the outer tail feathers. Similar to Common Pauraque, but smaller, with a shorter tail and a different voice. Compared to Tschudi's Nightjar, with which it overlaps in northwestern Peru, Scrub is much darker and has a different song. Scrub Nightjar typically gives a clear, whistled, incessantly repeated “tWEE-oh,” more emphatic and not as burry as Common Pauraque.
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A plain bulbul with brown upperparts and paler underparts. Note the pale, heavy bill and the short, pale eyebrow. Restricted to a few islands in the Nicobar archipelago, where it inhabits forests and forest edges. Usually in pairs, but known to congregate around fruiting trees. Noisy, with chattering calls.
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Common and widespread large gull found throughout North America. Adults have a fairly pale gray back, pale eye, and dull pinkish legs. Takes four years for immatures to progress from mostly brown to fully white and gray adult plumage; intermediate plumages are often mottled and messy. Usually shows a dull pinkish base to the bill by the first winter, and develops a pale eye by the second winter. Some immature birds can fade to almost white, especially in their first or second summer, but they always show darker wingtips. Occurs inland and along the coast, frequenting fishing boats, beaches, lakes, and landfills. Often forms large flocks with other gulls.
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