Violaceous Quail-Dove
Geotrygon violacea
A plump ground-dwelling dove with a large but patchy distribution from Nicaragua to southern Brazil. Relatively plain-looking for a quail-dove, with pale underparts and a blank face. Note rufous wings and purple sheen on nape and back. Ruddy Quail-Dove is darker, richer brown, especially on the head and underparts. Shy and infrequently seen, although may be seen walking along quiet trails early and late in the day. Somewhat arboreal, often perching up in the lower to middle levels. Typically found in mature forests or adjacent second-growth.
识别特征
Male violaceous quail-doves are 20 to 23.5 cm (7.9 to 9.3 in) long and females 21 to 24.5 cm (8.3 to 9.6 in). They weigh 93 to 150 g (3.3 to 5.3 oz). Adult males of the nominate subspecies have a grayish mauve crown, a grayish white face, and an iridescent purple to amethyst hindneck and shoulders. The rest of the upperparts are brown with an iridescent purple wash. The throat and breast are white with a purple tinge, the belly white, and the flanks buff. The eye is yellow-brown to orange-brown. Adult females are duller, with the purple gloss confined to the hindneck and shoulders. Their face and throat is pale gray, the neck and breast brownish with a purple tint, and the eye brown. Juveniles are similar to the female but darker, with no iridescence, and reddish to cinnamon scalloping on the upperparts. G. v. albiventer is bluer than the nominate on the head, breast, and shoulders.
分类信息
The violaceous quail-dove and most of what are now the other species in genus Geotrygon were previously in genus Oreopeleia. It has two subspecies, the nominate G. v. violacea and G. v. albiventer.
- 学名
- Geotrygon violacea
- 命名信息
- (Temminck, 1809)
- 目
- Columbiformes
- 科
- Columbidae
- 属
- Geotrygon
分布与栖息地
The nominate subspecies of violaceous quail-dove has a discontinuous distribution. It is found in southeastern Colombia; Guyana and Suriname; northeastern Brazil; parts of Peru and Bolivia; and southeastern Brazil, eastern Paraguay, and far northeastern Argentina. G. v. albiventer is found in Nicaragua, Costa Rica, Panama, and through northeastern Colombia to eastern Venezuela. Some seasonal movements are suspected but not documented. It inhabits the undergrowth and understory of tropical evergreen forest, both primary and secondary, and cacao plantations as well. In elevation it ranges up to 1,650 m (5,410 ft).
- 迁徙
- Resident species
行为
The violaceous quail-dove forages on the ground for seeds, fallen fruits, and probably small invertebrates.<p>The violaceous quail-dove's breeding season appears to span from March possibly to November, based on the timing of observations of adults in breeding condition, a nest with two eggs, and juveniles. The species builds a stick nest 1 to 2 m (3.3 to 6.6 ft) above the ground.<p>The violaceous quail-dove's advertising call is "a repeated, single, rather high-pitched cooing note".
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
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Lichenostomus melanops
A small to medium-sized honeyeater with a bright yellow chin and crown and bold black cheeks. Note the namesake small yellow tufts behind the ear. Gregarious and usually seen in groups; often aggressive towards other birds. Typically found in woodland areas around the southeast parts of Australia.
White-browed Hawk
Leucopternis kuhli
Compact, black-and-white forest hawk. Short tail and broad wings give it a chunkier appearance than other interior forest raptors like forest-falcons and hawks in the genus Accipiter. White below, black above, with a white eyebrow. Has a darker black-streaked head and more noticeable white eyebrows than the similar Black-faced Hawk, which has a white head with a small black mask. Found singly or in pairs in the midstory and canopy of mature rainforest.
Purple-backed Thornbill
Ramphomicron microrhynchum
Small hummingbird with an extremely short, straight bill. Males are unmistakable: brilliant purple above and green below. Females are green above and whitish below with dense green spotting, especially on the flanks. Both sexes have a fairly long, notched tail. Occurs in the Andes from western Venezuela to Peru. Usually seen singly in the canopy or borders of humid elfin forest near treeline, though can gather in larger numbers at flowering trees. Also ventures into páramo; occasionally descends to lower elevations in the dry season. Seasonal movements are not understood.
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