American Tree Sparrow vs Sooty Fox-sparrow
Passerella arborea 对比 Passerella unalaschcensis
Side-by-Side Comparison
| 属性 | American Tree Sparrow | Sooty Fox-sparrow |
|---|---|---|
| 学名 | Passerella arborea | Passerella unalaschcensis |
| 目 | Passeriformes | Passeriformes |
| 科 | Passerellidae | Passerellidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 14.4 cm (5.7 in) | 16.8 cm (6.6 in) |
| 体重 | 19.0 g (0.67 oz) | 34.65 g (1.22 oz) |
| 食性 | -- | -- |
| 产卵数 | 4-6 | 4-5 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
American Tree Sparrow
Least Concern
Sooty Fox-sparrow
About These Birds
American Tree Sparrow
The American Tree Sparrow is a compact passerellid weighing 19 g with a 14.4 cm wingspan, breeding in shrubby Arctic tundra and wintering in open fields and weedy areas across North America. It is identified by its rufous cap and distinctive central breast spot.