Rufous-crowned Sparrow vs American Tree Sparrow
Aimophila ruficeps 对比 Passerella arborea
Side-by-Side Comparison
| 属性 | Rufous-crowned Sparrow | American Tree Sparrow |
|---|---|---|
| 学名 | Aimophila ruficeps | Passerella arborea |
| 目 | Passeriformes | Passeriformes |
| 科 | Passerellidae | Passerellidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 12.0 cm (4.7 in) | 14.4 cm (5.7 in) |
| 体重 | 18.675 g (0.66 oz) | 19.0 g (0.67 oz) |
| 食性 | -- | -- |
| 产卵数 | 2-6 | 4-6 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Rufous-crowned Sparrow
Least Concern
American Tree 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.