Grasshopper Sparrow vs American Tree Sparrow
Ammodramus savannarum 比較対象 Passerella arborea
Side-by-Side Comparison
| 属性 | Grasshopper Sparrow | American Tree Sparrow |
|---|---|---|
| 学名 | Ammodramus savannarum | Passerella arborea |
| 目 | Passeriformes | Passeriformes |
| 科 | Passerellidae | Passerellidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 11.6 cm (4.6 in) | 14.4 cm (5.7 in) |
| 体重 | 18.566666666666666 g (0.65 oz) | 19.0 g (0.67 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 3-6 | 4-6 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Least Concern
Grasshopper Sparrow
Least Concern
American Tree Sparrow
About These Birds
Grasshopper Sparrow
北米の草原や牧草地に生息する小型のスズメ(体長12〜14cm)。平たい頭部と短い尾が特徴的で、黄色い眉斑が識別点。Ammodramus savannarum(ホオジロヤブスズメ)は地上性で、草の中を走り回って昆虫や種子を食べる。草原の消失により個体数が減少傾向にあり、保護が求められている。Passerellidae科。
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.