American Tree Sparrow vs Brewer's Sparrow
Passerella arborea 比較対象 Spizella breweri
Side-by-Side Comparison
| 属性 | American Tree Sparrow | Brewer's Sparrow |
|---|---|---|
| 学名 | Passerella arborea | Spizella breweri |
| 目 | Passeriformes | Passeriformes |
| 科 | Passerellidae | Passerellidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 14.4 cm (5.7 in) | 12.6 cm (5.0 in) |
| 体重 | 19.0 g (0.67 oz) | 10.933333333333332 g (0.39 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 4-6 | 2-4 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Least Concern
American Tree Sparrow
Least Concern
Brewer's 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.