Bell's Vireo vs Cassin's Vireo
Vireo bellii ile kıyaslandığında Vireo cassinii
Side-by-Side Comparison
| Özellik | Bell's Vireo | Cassin's Vireo |
|---|---|---|
| Bilimsel Ad | Vireo bellii | Vireo cassinii |
| Takım | Passeriformes | Passeriformes |
| Familya | Vireonidae | Vireonidae |
| Koruma Durumu | Least Concern | Least Concern |
| Uzunluk | — | — |
| Kanat Açıklığı | 11,1 cm (4.4 in) | 14,7 cm (5.8 in) |
| Ağırlık | 9,6 g (0.34 oz) | 15,066666666666668 g (0.53 oz) |
| Beslenme | -- | -- |
| Kuluçka Büyüklüğü | 3-4 | 3-5 |
| Population Trend | — | — |
Habitat Comparison
Koruma Durumu
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.