Thick-billed Ground-Pigeon
Trugon terrestris
A large ground pigeon of lowland and foothill forest. Plump with dark upperparts and pale rufous flanks. White cheek with a low crest behind the head and a bright red eye. Pale legs and a long, thick, pale-tipped bill. Shy and difficult to see. Forages on the ground and often flicks its tail. Thick bill and white cheek differentiate it from any similar-sized ground bird. Call, a single, flutelike “hoo!” given at regular intervals. Sounds like blowing over the top of a bottle.
识别特征
This robust species grows to a length of 33 cm (13 in); the sexes are similar in appearance. The upper parts are a uniform bluish-grey or brownish-grey, the breast is grey and the belly orangey-buff. The beak is broad with a pale tip, the ear coverts are pale and there is a short crest on the nape. The underwing coverts are boldly streaked in black and white but the tail is unbanded. The legs are pink.
分类信息
- 学名
- Trugon terrestris
- 命名信息
- Gray, GR, 1849
- 目
- Columbiformes
- 科
- Columbidae
- 属
- Trugon
分布与栖息地
The range is restricted to the island of New Guinea. Its habitat is lowland forest at altitudes up to about 650 m (2,000 ft). Although usually found in primary humid forest, it seems to be able to make use of partially cleared areas.
- 迁徙
- Resident species
行为
The thick-billed ground pigeon usually forages alone, but is sometimes seen in pairs. It is generally shy, staying mainly on the ground and running away into the undergrowth when disturbed, but launching itself vigorously into the air with rapidly beating wings when it feels threatened. It flicks its tail downwards frequently as it walks. It feeds on fruits and seeds that have fallen to the ground. It picks up fruit with its beak and hammers it on the ground to split it, exposing and eating the seeds. Small items are swallowed whole. It sometimes visits the display arenas of the magnificent bird-of-paradise in order to forage for regurgitated seeds.<p>This bird roosts at night on low branches. Breeding seems to take place at any time of year, with nests having been found between February and October. The nest is a hollow in the ground, perhaps concealed between the buttress roots of a large tree. It may be unlined or may incorporate a few twigs or leaves, or may be rather more elaborate. A single white egg is laid and is incubated by both parents, the male routinely sitting during the daytime. The fledged chick stays in its parents' territory for about a month.
保护状况
- 种群趋势
- stable
照片
分布
其他鸟类
Black Oystercatcher
Haematopus bachmani
Large, bulky shorebird. Dark overall with thick red bill, staring yellow eye, and thick, light pink legs. Exclusively coastal, favors rocky shorelines where it feeds on shellfish and other invertebrates. Usually in pairs or small flocks. Occurs from Alaska to northern Baja. Listen for loud yelps and whistles, often in a rapid series when excited. Hybrids with American Oystercatcher occur locally in southern California and Baja; look for messy spotting on the belly.
Dark-faced Ground-Tyrant
Muscisaxicola maclovianus
Small and rather distinctive terrestrial flycatcher, breeding in the southern Andes at high elevation and migrating north in winter where it can also be found in lowlands. Breeds in open rocky areas, sometimes down to level of open forest. Migrants often in flocks, sometimes a few hundred birds, as on playing fields and beaches. Upperparts relatively dark gray with blackish face mask, and an inconspicuous dark rusty nape patch. Resident Falkland population larger and plainer overall, likely a different species; found on moorland and beaches.
Togo Paradise-Whydah
Vidua togoensis
A nest parasite that lays its eggs in the nests of Yellow-winged Pytilias. As with other whydahs, breeding males are spectacular and bizarre, whereas non-breeding males and females are drab and inconspicuous. Breeding males are mostly black with a rufous breast, a yellow back of the neck, and a long, narrow tail. Non-breeding male and female plumages are poorly known, but show a streaky brownish back and pale underparts. Generally scarce and local in savanna and cultivated areas. Breeding male similar to other paradise-whydahs, but has a longer and narrower tail. Separation of non-breeding male and female from other paradise-whydahs is poorly understood. Not very vocal, but does mimic Yellow-winged Pytilia vocalizations, which include simple, nasal “teew” notes.
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