Arctic Tern vs 金雕
Sterna paradisaea 对比 Aquila chrysaetos
Side-by-Side Comparison
| 属性 | Arctic Tern | 金雕 |
|---|---|---|
| 学名 | Sterna paradisaea | Aquila chrysaetos |
| 目 | Charadriiformes | Accipitriformes |
| 科 | Laridae | Accipitridae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | 34.0 cm (13.4 in) | 81.0 cm (31.9 in) |
| 翼展 | 80.0 cm (31.5 in) | 212.0 cm (83.5 in) |
| 体重 | 110.0 g (3.88 oz) | 4050.0 g (142.86 oz) |
| 食性 | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | Mammals including rabbits, hares, ground squirrels, and marmots. Also takes birds, reptiles, and carrion. Hunts … |
| 产卵数 | 2-3 | 1-3 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Arctic Tern
Breeds on coastal and tundra habitats. Spends most of its life at sea over the open ocean. Nests in colonies on beaches and rocky shores.
金雕
Open and semi-open country including mountains, hills, and tundra. Prefers areas with cliffs or large trees for nesting and open terrain for hunting.
Song & Call Comparison
Arctic Tern
A sharp, grating 'kree-yah' alarm call. Also gives 'kik-kik-kik' near the nest. Highly aggressive vocally during the Arctic breeding season. Calls are harsh and insistent.
金雕
Mostly silent; emits a thin, high-pitched whistle 'kee-kee-kee' near the eyrie. Also gives low barking 'yak-yak' and mewing calls. Far less vocal than its size suggests.
Geographic Range & Migration
Arctic Tern
Breeds in the Arctic and sub-Arctic. Migrates to the Antarctic, experiencing two summers per year. Found on every ocean.
金雕
Holarctic distribution across North America, Europe, North Africa, and Asia. The most widely distributed eagle species.
保护状况
Arctic Tern
金雕
How to Tell Them Apart
Arctic Tern
Pale grey upperparts, white underparts with a black cap. Blood-red bill and short red legs. Deeply forked tail streamers. Winter adults lose the full black cap.
Slender, pointed, bright red bill
金雕
Dark brown overall with a golden-bronze sheen on the nape and crown. Juveniles show distinct white patches at the base of the tail and in the wings.
Dark horn-colored hooked bill with a yellow cere
About These Birds
Arctic Tern
北极燕鸥进行所有动物中最长的迁徙，每年从北极繁殖地飞往南极越冬地，往返距离超过70,000公里。体型纤细，翼展约80厘米，全身主要为白色，具黑色头冠和红色喙。无危；繁殖于北极和亚北极海岸及岛屿，全球种群约200万只。
金雕
The golden eagle is one of the most powerful and agile raptors in the Northern Hemisphere. Revered by many cultures, it has been used in falconry for centuries, particularly by Kazakh eagle hunters of Central Asia. Golden eagles can dive at speeds exceeding 240 km/h when pursuing prey.