Black-capped Vireo vs Bell's Vireo
Vireo atricapilla 对比 Vireo bellii
Side-by-Side Comparison
| 属性 | Black-capped Vireo | Bell's Vireo |
|---|---|---|
| 学名 | Vireo atricapilla | Vireo bellii |
| 目 | Passeriformes | Passeriformes |
| 科 | Vireonidae | Vireonidae |
| 保护状况 | Near Threatened | Least Concern |
| 体长 | — | — |
| 翼展 | 11.0 cm (4.3 in) | 11.1 cm (4.4 in) |
| 体重 | 8.649999999999999 g (0.31 oz) | 9.6 g (0.34 oz) |
| 食性 | -- | -- |
| 产卵数 | 3-4 | 3-4 |
| Population Trend | — | — |
保护状况
Black-capped Vireo
Bell's Vireo
About These Birds
Black-capped Vireo
The Black-capped Vireo is a Near Threatened small vireo of Texas and Oklahoma in the United States, wintering on Mexico's Pacific coast, with males displaying a striking black cap, white spectacles, and olive-green and white plumage. It inhabits dense, shrubby oak and juniper thickets in rocky terrain. Brown-headed cowbird parasitism and habitat loss drove its listing as endangered in the past; conservation efforts have aided recovery.
Bell's Vireo
Bell's Vireo is a small, active vireo of riparian thickets and brushy areas in the western and central United States, wintering in Mexico and Central America. It has plain olive-grey plumage with faint wing bars and a persistent, complex song delivered continuously throughout the breeding season. Some subspecies, like the Least Bell's Vireo, are federally endangered due to cowbird parasitism and riparian habitat loss.