Thick-billed Green-Pigeon
Treron curvirostra
Brightly-colored and thickset pigeon of the forest canopy, usually seen flying over in pairs or small groups. Distinctive bicolored bill and bright green eyering are visible even from a distance. Both sexes are mostly green. Males have maroon backs, while females are green all over; both have jagged bright yellow striping on the wing edges. Flocks are seen in fruiting trees in lowland and foothill forests, where they often associate with other green pigeons. Gives smoothly undulating “woooOOOO”, often in series.
识别特征
Rather small-sized pigeon being under 26 cm (10 in) as compared to other green pigeons. A thick pale greenish bill with red base, broad bluish-Green eye ring, grey crown and maroon mantle diagnostic. Wings have black primary and secondaries with yellow outer edge. Underside green in both sexes. Thighs dark green with whitish scales. Female has greenish undertail coverts with whitish scales. Males have maroon dorsum and dull chestnut undertail coverts.
分类信息
The thick-billed green pigeon was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae. He placed it with all the other doves and pigeons in the genus Columba and coined the binomial name Columba curvirostra. Gmelin based his description on the "Hook-billed Pigeon" from the "island of Tanna in the South Seas" that had been described and illustrated in 1783 by the English ornithologist John Latham. Latham was mistaken in believing that his specimen had come from the island of Tanna in the New Hebrides. The type locality was designated as the Malay Peninsula by Harry C. Oberholser in 1912. The thick-billed green pigeon is now placed with around 30 other green pigeons in the genus Treron that was introduced in 1816 by the French ornithologist Louis Pierre Vieillot. The genus name is from the Ancient Greek trērōn meaning "pigeon" or "dove". The specific epithet curvirostra combines the Latin curvus meaning "curved" with -rostris meaning "billed".<p>Nine subspecies are recognized:
- 学名
- Treron curvirostra
- 命名信息
- (Gmelin, JF, 1789)
- 目
- Columbiformes
- 科
- Columbidae
- 属
- Treron
分布与栖息地
It ranges across the eastern regions of the Indian Subcontinent and Southeast Asia, stretching from the Eastern Himalayas to Borneo and Sumatra.<p>Found across Bangladesh, Bhutan, Brunei, Cambodia, Hong Kong, India, Indonesia, Laos, Malaysia, Myanmar, Nepal, the Philippines, Singapore, Thailand, Tibet and Vietnam.<p>Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical mangrove forests.
- 迁徙
- Complete migrants
行为
Known to feed on syconia of Figs walking slowly along the branches.
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Common Black Hawk
Buteogallus anthracinus
An aptly-named entirely black hawk with broad wings and short tail with a distinct white band. Flight feathers are slightly paler and it has long yellow legs and yellow on the base of the bill. Immature birds are streaky brown with dark moustache and pale eyebrow. Typically found in woodlands near water where it hunts; shows an affinity for cottonwood trees at the northern end of its range.
Rufous-thighed Kite
Harpagus diodon
Small unobtrusive raptor. Adults have a gray body (darker above than below), and rufous thighs and eyes. The throat is white with a very thin dividing black line helping to distinguish it from the similar Bicolored Hawk. In flight, adults have distinctive rufous underwings (white in juveniles), and three pale bands on the tail. Juveniles are streaked below with barred rufous thighs. Found in the canopy of primary forests and at borders. Often seen soaring high overhead.
Large Niltava
Niltava grandis
Typical niltava: male bright blue, female plain brown. Male is bright electric purplish-blue above and very dark blue below. Female is dark brown with rusty tones in the wings and an iridescent blue patch on the neck. Southeast Asian females have a pale powder-blue crown and nape. Lack of a bright white throat patch separates female from female Rufous-bellied and Fujian Niltavas. Small Niltava is similar in plumage, but much smaller and less heavyset. Male White-tailed Robin can be surprisingly similar but is proportionally smaller-headed and larger-bodied and has a wider tail with two bright white patches on it. Inhabits dense submontane forests, where it can be difficult to spot in dense foliage; often encountered making forays from a perch. Song is an ascending series of 3-4 short, highly musical whistled notes.
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