Rufous-crowned Sparrow vs American Tree Sparrow
Aimophila ruficeps 비교 대상 Passerella arborea
Side-by-Side Comparison
| 속성 | Rufous-crowned Sparrow | American Tree Sparrow |
|---|---|---|
| 학명 | Aimophila ruficeps | Passerella arborea |
| 목 | Passeriformes | Passeriformes |
| 과 | Passerellidae | Passerellidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 12.0 cm (4.7 in) | 14.4 cm (5.7 in) |
| 체중 | 18.675 g (0.66 oz) | 19.0 g (0.67 oz) |
| 식성 | -- | -- |
| 산란 수 | 2-6 | 4-6 |
| Population Trend | — | — |
Habitat Comparison
보전 상태
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.