Bridled Quail-Dove
Geotrygon mystacea
A smallish, chunky, ground-dwelling species of forests with dense leaf litter; prefers wetter habitats. Secretive but not shy; sometimes detected by the rustling of leaves it is strolling through. The rather similar Key West Quail-Dove lacks iridescent turquoise on the neck and has a reddish or purple upper back unlike Bridled. Ruddy Quail-Doves have less contrasting facial markings and the males have an entirely rusty back; some also sport a vertical white shoulder stripe. Song is a low, plaintive “hoo-hooooooo,” given at a single pitch with second note initially growing louder and then leveling off; first note sometimes omitted.
识别特征
Specimens of bridled quail-dove from several islands had mean weights between 208 and 224 g (7.3 and 7.9 oz) with fairly large standard deviations. These data and measurements of various body parts suggest that the species "has low morphometric variance across its distribution."<p>Adult bridled quail-doves are mostly brown. They have a bold white stripe across the face below the eye and a small white patch on the throat. The male's head and nape are iridescent green which becomes blues and violets on the lower neck and upper back; females have less iridescence. The tail is dark brownish gray and the belly cream. The folded wing shows some cinnamon markings.
分类信息
The bridled quail-dove is monotypic. It has been suggested that it and the Key West quail-dove (Geotrygon chrysia) form a superspecies.
- 学名
- Geotrygon mystacea
- 命名信息
- (Temminck, 1811)
- 目
- Columbiformes
- 科
- Columbidae
- 属
- Geotrygon
分布与栖息地
The bridled quail-dove is or was found from Puerto Rico south and east through the Lesser Antilles to Saint Lucia. As of 2009, it was generally uncommon to rare throughout its range, and might have been extirpated from some islands. Privately owned Guana Island, one of the British Virgin Islands, appears to be the only site where is considered common. It inhabits forested mountain areas that have dense understory and much leaf litter.
- 迁徙
- Resident species
行为
Bridled quail-doves usually forage singly or in pairs and also sometimes in larger groups. They probe and toss leaf litter on the forest floor searching for seeds, fallen fruits, and invertebrates such as snails and insects. These birds have also been documented to eat Sphaerodactylus macrolepis, a lizard native to the Puerto Rico area.<p>The bridled quail-dove builds a platform nest of twigs in vines, shrubs, or trees. The clutch size is one or two.<p>The bridled quail-dove's call is "a relatively deep, resonating coo" described as "haoooo", "hoo-hoooooo", or "who-whooo". It also makes a "guttural croaking" call whose purpose is not known.
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
White-eared Night Heron
Oroanassa magnifica
Rare and elusive night-heron with a bug-eyed, almost “alien,” appearance. Highly localized, seldom encountered far from its nesting colonies and roost sites. Black above with gray streaking on the chest and a clean white-and-orange head pattern, though this can be hard to see in poor lighting. Forages quietly in well-shaded forest streams, but most reliably seen in its small breeding colonies, usually hidden deep in a stand of bamboo or evergreen trees.
Chinese Beautiful Rosefinch
Carpodacus davidianus
A heavily marked rosefinch that is closely related to and extremely similar to Himalayan Beautiful Rosefinch. Male averages more extensively pink with a broader pink brow. The female, on the other hand is almost indistinguishable; look for a more square-tipped and slightly shorter tail. Best distinguished by calls; gives sharp metallic notes instead of Himalayan Beautiful’s more mellow trills and twitters. Inhabits similar montane scrub and open forest habitat, occasionally ventures down into the outskirts of towns and villages; often singly or in pairs.
Band-tailed Guan
Penelope argyrotis
A pale-faced and short-crested guan with a red throat and dark brown body with contrasting fine white streaks. Face markings are distinctive: has a long pale eyebrow and whitish moustache and cheeks; also shows bare bluish gray skin around the eye and a dull rufous tipped tail. Sexes similar. Common in the canopy of cloud forest, generally in groups resting or foraging for fruits. Often very quiet, but easy to see when flying awkwardly from a tree or vocalizing. The alarm call is a soft piping whistle or a loud gruff and harsh burst of calls; also gives a wing-rattle display, common just before sunrise or after sunset. Found only in Colombia and Venezuela.
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