Bell's Vireo vs Dwarf Vireo
Vireo bellii 比較対象 Vireo nelsoni
Side-by-Side Comparison
| 属性 | Bell's Vireo | Dwarf Vireo |
|---|---|---|
| 学名 | Vireo bellii | Vireo nelsoni |
| 目 | Passeriformes | Passeriformes |
| 科 | Vireonidae | Vireonidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 11.1 cm (4.4 in) | 11.0 cm (4.3 in) |
| 体重 | 9.6 g (0.34 oz) | 9.3 g (0.33 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 3-4 | -- |
| Population Trend | — | — |
保全状況
Least Concern
Bell's Vireo
Least Concern
Dwarf Vireo
About These Birds
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.