Elegant Imperial-Pigeon
Ducula concinna
A large pigeon of small islands. Shows a conspicuous pale yellow eye, a pale gray head and underparts, a chestnut vent, and a green back, wings, and uppertail. Found in flocks within the upper levels of forest edges, wooded areas, and plantations. The beady yellow eye is unique for a green pigeon in its range. Further differs from Spectacled Imperial-Pigeon in lacking spectacles and in having a red base to the undertail. Calls include “kuk” notes, a purring “woo-ooo,” a higher-pitched “waaa-aaa,” and growling sounds.
识别特征
The elegant imperial pigeon is a large pigeon, measuring 43 cm (17 in) in length. The head, neck, and upper back are pale grey, with a pink tinge on the nape and back of the crown. The rest of the upperparts are shimmering dark green, while the top of the tail is purplish-blue, sometimes appearing black. The underparts are pale grey with a pink tinge, while the undertail coverts are reddish-brown. The undersides of the tail and wing are black. The bill is black or bluish-grey, with a ring of white feathers at its base, the iris is golden, and the feet are pinkish-red to crimson. Both sexes are similar, but females have darker grey and pink colours. Juveniles are duller than adults.<p>The elegant imperial pigeon's call is a loud, throaty, barking urrauw, made at variable intervals. These are interspersed with low-pitched, loud, upslurred growls. These growls are often produced after another individual has given the bark.
分类信息
The elegant imperial pigeon was originally described as Carpophaga concinna by Alfred Russel Wallace in 1865 based on specimens from the Watubela Islands.
- 学名
- Ducula concinna
- 命名信息
- (Wallace, 1865)
- 目
- Columbiformes
- 科
- Columbidae
- 属
- Ducula
分布与栖息地
The elegant imperial pigeon inhabits small islands in Wallacea and off New Guinea. It has been recorded from the Talaud Islands, Sangihe, islands off southern Sulawesi, the southern Maluku Islands, and the eastern Lesser Sundas from Romang to Tanimbar, east up to the Aru Islands. Vagrants have also been recorded from Buru and Darwin, Australia.<p>The elegant imperial pigeon inhabits primary forest, secondary forest, forest edge, and trees in cultivated areas. It mostly inhabits lowlands, but is sometimes found up to elevations of 850 m (2,790 ft).
- 迁徙
- Resident species
行为
The elegant imperial pigeon is thought to migrate between small islands to look for food. One vagrant observed in Australia may have reached there with migrating Torresian imperial pigeons.<p>The elegant imperial pigeon feeds on fruit, and has been recorded feeding on young coconut fruit, Ficus figs, Canarium species, Gnetum gnemon, fish poison trees (Barringtonia asiatica), Moluccan albizia (Falcataria moluccana), Bornean ironwood (Eusideroxylon zwageri), and Indonesian mahogany (Toona sureni). A vagrant in Australia was also observed feeding on banyan and palm trees. Foraging flocks can contain up to 40 birds.<p>On Damar, nest-building was observed in August, when two nests were found at heights of 25–30 m (82–98 ft) in primary evergreen forest.
保护状况
- 种群趋势
- declining
照片
分布
其他鸟类
Tawny-breasted Parrotfinch
Erythrura hyperythra
Despite its exquisite coloration, this tiny finch is reclusive, generally uncommon, and seldom observed. Note emerald-green back and orange extending from the face down to the upper belly. Sky-blue forehead patch is much larger and brighter in males than females. Found in highland forests and forest edge; often associated with bamboo thickets.
White-naped Tit
Machlolophus nuchalis
The only strongly patterned, black-and-white tit in its range. The upperparts from forehead to tail are glossy black, with a prominent white patch on the lower nape and upper mantle. The cheeks and the rest of the underparts are white, with a wide black central band running from throat to vent. The wings have a large white patch with a few black bars. Female and juvenile retain the same basic pattern, with duller black and dingier white. A habitat specialist found only in dry thorny forests. Seen in pairs or small family groups; quite vocal, commonly gives a 2- to 5-noted high-pitched “psi-psi-psi” ending in a harsh churrr.
Kandt's Waxbill
Estrilda kandti
Pretty waxbill that is gray, black, and white, with red highlights. The bright red rump is conspicuous in flight. Found along forest edge and clearings, usually in grassy areas, in pairs or small flocks. The calls include high-pitched “tsik” and “tseet” notes which are often given in chorus by a flock, especially in flight. Similar to Black-crowned Waxbill, but darker and browner overall, with a black rather than white undertail.
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