Bell's Vireo vs Cassin's Vireo
Vireo bellii 비교 대상 Vireo cassinii
Side-by-Side Comparison
| 속성 | Bell's Vireo | Cassin's Vireo |
|---|---|---|
| 학명 | Vireo bellii | Vireo cassinii |
| 목 | Passeriformes | Passeriformes |
| 과 | Vireonidae | Vireonidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 11.1 cm (4.4 in) | 14.7 cm (5.8 in) |
| 체중 | 9.6 g (0.34 oz) | 15.066666666666668 g (0.53 oz) |
| 식성 | -- | -- |
| 산란 수 | 3-4 | 3-5 |
| Population Trend | — | — |
Habitat Comparison
보전 상태
Least Concern
Bell's Vireo
Least Concern
Cassin's 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.