白头海雕 vs Emperor Penguin
Haliaeetus leucocephalus 对比 Aptenodytes forsteri
Side-by-Side Comparison
| 属性 | 白头海雕 | Emperor Penguin |
|---|---|---|
| 学名 | Haliaeetus leucocephalus | Aptenodytes forsteri |
| 目 | Accipitriformes | Sphenisciformes |
| 科 | Accipitridae | Spheniscidae |
| 保护状况 | Least Concern | Near Threatened |
| 体长 | 79.0 cm (31.1 in) | 115.0 cm (45.3 in) |
| 翼展 | 203.0 cm (79.9 in) | 76.0 cm (29.9 in) |
| 体重 | 4300.0 g (151.68 oz) | 30000.0 g (1058.22 oz) |
| 食性 | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … | Primarily Antarctic silverfish, krill, and squid. The deepest-diving bird, reaching depths over 500 meters and … |
| 产卵数 | 1-4 | 1 |
| 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.
Emperor Penguin
Antarctic pack ice and surrounding Southern Ocean. The only penguin species that breeds during the Antarctic winter.
Song & Call Comparison
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.
Emperor Penguin
Loud, resonant trumpeting calls used for individual recognition in dense colonies. Each bird's call is unique in frequency. Also gives softer contact 'braying' notes.
Geographic Range & Migration
白头海雕
North America from Alaska and Canada through the contiguous United States to northern Mexico.
Emperor Penguin
Antarctic continent and surrounding sea ice. Breeding colonies are found along the entire Antarctic coastline.
保护状况
白头海雕
Emperor Penguin
How to Tell Them Apart
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
Emperor Penguin
Black head, chin, and dorsal side with white belly. Bright yellow-orange ear patches fade to pale yellow on the upper breast.
Long, slightly decurved bill — black with orange or pink mandible stripe
About These Birds
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.
Emperor Penguin
体型最大、最重的企鹅。在南极冬季零下60摄氏度的环境中繁殖。雄鸟孵卵约65天，期间完全禁食。