Wing-barred Seedeater
Sporophila americana
Small seed-eating bird with a thick black bill. Male strikingly black-and-white, with much variation in extent of black breastband and white wingbars. Averages darker at western end of range (Ecuador and Peru), paler along coast of northeastern South America. Separated from other black-and-white seedeaters by dark bill, white throat and collar imparting cowled appearance. No known range overlap with similar Variable Seedeater. Females nondescript brown and very difficult to distinguish from other seedeaters, sometimes best left unidentified. Look for thick black bill with curved culmen. Found in disturbed habitats including pastures, river edges, and scrubby weedy areas. Usually in pairs or small flocks, sometimes mixed with other seedeater species.
识别特征
It has a total length of approximately .mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .den{vertical-align:sub}.mw-parser-output .sr-only{border:0;clip:rect(0,0,0,0);clip-path:polygon(0px 0px,0px 0px,0px 0px);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}11 cm (4+1⁄4 in). Adult males have a relatively heavy black bill. The upperparts are black, except for a greyish rump (actually white finely streaked black, but only visible up-close) and two distinct white wing-bars (the lower often reduced). The underparts are white, except for a broad black pectoral collar (sometimes reduced and incomplete) and blackish mottling to the upper flanks. The far duller female has a brownish bill, dull buffy-olive upperparts and pale olive-ochre underparts. Juveniles resemble adult females.
分类信息
Genus: Sporophila; Family: Thraupidae; Order: Passeriformes.
- 学名
- Sporophila americana
- 命名信息
- (Gmelin, JF, 1789)
- 目
- Passeriformes
- 科
- Thraupidae
- 属
- Sporophila
分布与栖息地
- 迁徙
- Resident species
行为
It is found in open or semi-open grassy areas and shrub, usually in pairs or small flocks. As with other Sporophila seedeaters, it mainly feeds on seeds, but has also been observed taking flowers, buds and fruits.<p>It remains fairly common in Suriname, French Guiana and parts of Brazil, and is therefore considered to be of least concern by BirdLife International and IUCN. It is rare to uncommon in Venezuela and Guyana where threatened by trapping for the wild bird trade.
保护状况
Population trend: declining.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Crested Guan
Penelope purpurascens
Very large, long-tailed game bird of tropical and subtropical forest. Often seen high in trees or flying through the forest canopy; usually not seen in areas near people except in some protected areas due to hunting pressure. Typically in pairs or small groups and wary. Plumage dark overall (often looks blackish) with bright red throat wattle; white streaking on body visible at closer range. Crest is bushy and usually not a striking feature.
Gray-eyed Bulbul
Iole propinqua
Drab, undistinguished-looking bulbul. Predominantly gray-brown with a white throat and slight rufous tones on the wings and tail. Pale eye and unmarked head distinguish it from other plain brownish bulbuls within its range. Tends to be seen solitarily or in pairs but will occasionally join mixed flocks or forage in larger groups at fruiting trees. Unmusical; gives a loud, ringing nasal note, often repetitively.
Such's Antthrush
Chamaeza meruloides
Plump anthrush with a short cocked-tail and long legs. Walks quietly on the ground of humid montane forests between 200 and 1500 m, where it is usually very difficult to see. It has a rufous crown, olive-brown back, and a heavily streaked belly. Note the white throat and eyebrow. Almost identical in plumage to Rufous-tailed Antthrush, but differs in song. Such's Antthrush sings a long (20-40 seconds) and melodious series of “tju tju tju” notes while Rufous-tailed Antthrush has a faster and shorter (3-4 seconds) song.
开始您的观鸟之旅
在户外识别鸟类，并在下一次观察时随手查阅鸟类图鉴。