Philadelphia Vireo
Vireo philadelphicus
Small, short-tailed, most similar to Warbling Vireo, but brighter: look for yellow wash on underparts, brightest on throat and undertail, and dark line through the eye that connects to base of bill. Dull individuals can be very difficult to distinguish from Warbling Vireo, but Warbling usually brightest yellow on flanks, not throat. Similar to Red-eyed Vireo but with shorter bill and yellower below. Breeds in deciduous forests, especially areas with younger trees including birches or aspens. Migrates through a variety of wooded and brushy habitats; winters in Central America. Song nearly identical to Red-eyed Vireo. Feeds on insects; especially caterpillars.
识别特征
Adults are mainly olive-brown on the upperparts with yellow underparts; they have dark eyes and a grey crown. They have no wing bars and no eye ring. There is a dark line through the eyes and a white stripe just over them. They have thick blue-grey legs and a stout bill. The Philadelphia vireo is similar in appearance to the warbling vireo, but can be reliably distinguished by having much yellower underparts, and dark lores.[citation needed]
分类信息
- 学名
- Vireo philadelphicus
- 命名信息
- (Cassin, 1851)
- 目
- Passeriformes
- 科
- Vireonidae
- 属
- Vireo
分布与栖息地
- 繁殖区
- NA : c, s Canada to nc, ne USA
- 非繁殖区
- MA, nw SA
- 迁徙
- Complete migrants
行为
Their breeding habitat is the edges of deciduous and mixed woods across Canada. They make a basket-shaped cup nest in a fork of a tree branch, usually placed relatively high. The female lays 3 to 5 lightly spotted white eggs. Incubation, by both parents, lasts up to 14 days.<p>These birds migrate to Mexico and Central America. This vireo is a very rare vagrant to western Europe. They are unlikely to visit Philadelphia, except in migration.<p>They forage for insects in trees, sometimes hovering or flying to catch insects in flight. They also eat berries, especially before migration.<p>The songs and calls of Philadelphia vireo are three to five notes, weeezh weeezh weeezh, very similar to those of the red-eyed vireo,but with slightly longer pauses between phrases and higher notes.
保护状况
- 种群趋势
- rising
照片
分布
鸟叫声
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