棕颈鹰 vs 白头海雕
Accipiter rufitorques 对比 Haliaeetus leucocephalus
Side-by-Side Comparison
| 属性 | 棕颈鹰 | 白头海雕 |
|---|---|---|
| 学名 | Accipiter rufitorques | Haliaeetus leucocephalus |
| 目 | Accipitriformes | Accipitriformes |
| 科 | Accipitridae | Accipitridae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | 79.0 cm (31.1 in) |
| 翼展 | 43.5 cm (17.1 in) | 203.0 cm (79.9 in) |
| 体重 | 226.66666666666666 g (8.00 oz) | 4300.0 g (151.68 oz) |
| 食性 | -- | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … |
| 产卵数 | 2-4 | 1-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
白头海雕
Large bodies of open water including coasts, rivers, and lakes with abundant fish and old-growth trees for nesting.
Song & Call Comparison
棕颈鹰
白头海雕
High-pitched, chattering whistle: a rapid 'kleek-kik-ik-ik-ik'. Surprisingly weak and thin for such a large raptor. Also gives a lower 'kwit-kwit' call near the nest.
Geographic Range & Migration
棕颈鹰
白头海雕
North America from Alaska and Canada through the contiguous United States to northern Mexico.
保护状况
棕颈鹰
白头海雕
How to Tell Them Apart
棕颈鹰
白头海雕
Adults have a dark brown body with a striking white head and tail. Juveniles are mottled brown and white, reaching full adult plumage at age five.
Large, hooked, bright yellow bill
About These Birds
棕颈鹰
The Fiji Goshawk, <em>Accipiter rufitorques</em>, belongs to the family Accipitridae and is endemic to the Fijian archipelago in the southwestern Pacific. Detailed plumage and behavioral descriptions of this species are limited in the available literature. It is associated primarily with forested habitats, where it likely hunts small vertebrates and invertebrates typical of island accipiter diets. The nest type recorded for this species is described as a platform-like structure, consistent with the nesting style of many hawks in this family. Clutch …
白头海雕
The bald eagle is the national bird and symbol of the United States. Once endangered due to DDT pesticide use, it made a remarkable recovery and was removed from the endangered species list in 2007. These powerful raptors build the largest tree nests of any bird, some weighing over two tons.