Baird's Junco vs American Tree Sparrow
Junco bairdi so với Passerella arborea
Side-by-Side Comparison
| Thuộc Tính | Baird's Junco | American Tree Sparrow |
|---|---|---|
| Tên Khoa Học | Junco bairdi | Passerella arborea |
| Bộ | Passeriformes | Passeriformes |
| Họ | Passerellidae | Passerellidae |
| Tình Trạng Bảo Tồn | Near Threatened | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 15,5 cm (6.1 in) | 14,4 cm (5.7 in) |
| Khối Lượng | 17,85 g (0.63 oz) | 19,0 g (0.67 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 2 | 4-6 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Không
Baird's Junco only
American Tree Sparrow only
Tình Trạng Bảo Tồn
Near Threatened
Baird's Junco
Least Concern
American Tree Sparrow
About These Birds
Baird's Junco
The Baird's Junco is a Near Threatened junco endemic to the mountains of the Sierra de la Laguna in Baja California Sur, Mexico, weighing about 17.85g with a wingspan of 15.5cm. It inhabits pine-oak forest at high elevations and feeds on seeds and insects on or near the ground. Its very restricted range makes it vulnerable to climate change.
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.