Arctic Tern vs White-winged Tern
Sterna paradisaea 对比 Chlidonias leucopterus
Side-by-Side Comparison
| 属性 | Arctic Tern | White-winged Tern |
|---|---|---|
| 学名 | Sterna paradisaea | Chlidonias leucopterus |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | 34.0 cm (13.4 in) | — |
| 翼展 | 80.0 cm (31.5 in) | 41.6 cm (16.4 in) |
| 体重 | 110.0 g (3.88 oz) | 60.5 g (2.13 oz) |
| 食性 | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | -- |
| 产卵数 | 2-3 | 2-3 |
| 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.
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.
White-winged Tern
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.
White-winged Tern
保护状况
Arctic Tern
White-winged Tern
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
White-winged Tern
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。
White-winged Tern
白翅浮鸥 (Chlidonias leucopterus)，体长约20–24厘米。繁殖期头体黑色，翅膀和尾部白色，形成醒目的黑白对比；冬羽头部和下体白色，上体灰色。繁殖于欧亚大陆湿地，冬季迁至非洲和东南亚。以水生昆虫和小型鱼类为食。