Mountain Imperial-Pigeon
Ducula badia
Large elegant pearl-gray pigeon with dark wings. Inhabits mature forests in foothills and montane areas; can be found down to sea level in western India. Forages in upper levels of forest, often in small flocks. Flies powerfully over the canopy. Song is deep and resonant: “ouh-woOO WOO.”
识别特征
The mountain imperial pigeon is the largest pigeon species in its range at 43–51 cm (17–20 in) long. It has a fairly long tail, broad, rounded wings and slow wing-beats. The head, neck and underparts are vinous-grey with a contrasting white throat and brownish-maroon upperparts and wings, though the upper part of the body can be duller. The underwing is slate-grey and the tail is blackish with a grey horizontal line. The combination the maroon back with the large size give this species a distinctive appearance. Its call consists of a deep, resonant boom that is only detectable at close range.
分类信息
The Malabar imperial pigeon (D. cuprea) of India's Western Ghats was formerly considered conspecific, but was split as a distinct species by the IOC in 2021.
- 学名
- Ducula badia
- 命名信息
- (Raffles, 1822)
- 目
- Columbiformes
- 科
- Columbidae
- 属
- Ducula
分布与栖息地
The pigeon has a wide range in south-eastern Asia, where it occurs in Bangladesh, Bhutan, Brunei, Cambodia, China, India, Indonesia, Laos, Malaysia, Myanmar, Nepal, Thailand, and Vietnam. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical mangrove forests, and subtropical or tropical moist montane forests. It may be found from sea level to elevations of 2,550 m (8,370 ft) in the Himalayas and 2,200 m (7,200 ft) on Sumatra. Being mainly a foothill bird, it probably only breeds above an elevation of 500 m (1,600 ft), although feeding flocks below this are common. It is usually found in old-growth forests. The species is generally fairly common where extensive stands of forest remain.
- 迁徙
- Resident species
行为
Though usually solitary, this species has been seen in groups numbering up to 20, especially when going to roost or flying up or down in mountains. They can be difficult to see, since they spend their time usually in high canopy and usually fly fairly high over the canopy.<p>During the breeding display, calling birds puff up their throats considerably while singing and bow to potential mates. Then the displaying bird engages in a vertical flight up from the perch, up 6 to 8 m (20 to 26 ft) into the air, and then glide back down with wings and tail widely spread. In the Northern stretches of the species range, breeding is from March to August, while in the southern parts of India and southeast Asia, they breed from January to May. The nest is usually in a fairly small tree, about 5 to 8 m (16 to 26 ft) off the ground, and is a flimsy platform. One, or rarely two, eggs are laid and both parents incubate. They only leave the nest if highly pressed.<p>They feed on fruits and berries, especially figs and nutmeg, which are plucked and swallowed whole. They will occasionally go to the ground to drink, as in Bornean mangroves where up to 200 or 300 of these pigeons have been flushed at once. There may be a partial altitudinal movement in some parts of their range, in pursuit of ideal feeding conditions.
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Western Capercaillie
Tetrao urogallus
Huge gamebird of conifer forest, adjacent moorland, and clearings with shrubs, mainly in wilder areas. Mostly elusive, but occasional males go "rogue" and attack hikers. Groups of males display just after dawn in early spring, holding their tail raised and fanned like a turkey. Massive male is blackish overall with long tail, white shoulder spot. Female appreciably smaller than male, told from smaller female Black Grouse by unbarred rusty breast and bright rusty tail with black bars.
Yellow-wattled Lapwing
Vanellus malabaricus
Elegantly long-winged brown lapwing. Breeding adult has clean black cap, bright yellow facial wattles, and a white belly. Non-breeding adults and juveniles are more mottled overall and lack a solid black cap. Note contrasting wing and tail pattern when in flight. Prefers dry open areas, often well away from water. Gives a loud rasping tern-like call and a loud “cheeeee’it” in alarm; generally not as noisy as other lapwings.
Slender-billed Xenops
Xenops tenuirostris
A small, brown bird of rainforest canopy. Note upturned mandible, white whisker mark, and pale streaking on underparts and back. Follows mixed-species flocks in the canopy but is rarely encountered. Bores into dead twigs and vines for insects, and may climb briefly on larger branches to probe bark crevices. Song is 4–6 high notes, dropping slightly in pitch at end; delivered forcefully but with a thin quality and thus easily overlooked. In central and western Amazonia, compare with very similar Streaked Xenops, from which it is best separated by Slender-billed’s slower song. Readily distinguished from Rufous-tailed Xenops by prominent white whisker streak.
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