Aleutian Tern vs Little Tern
Onychoprion aleuticus 对比 Sternula albifrons
Side-by-Side Comparison
| 属性 | Aleutian Tern | Little Tern |
|---|---|---|
| 学名 | Onychoprion aleuticus | Sternula albifrons |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Vulnerable | Least Concern |
| 体长 | — | — |
| 翼展 | 52.4 cm (20.6 in) | 33.9 cm (13.3 in) |
| 体重 | 104.88 g (3.70 oz) | 55.0 g (1.94 oz) |
| 食性 | -- | -- |
| 产卵数 | 1-4 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Vulnerable
Aleutian Tern
Least Concern
Little Tern
About These Birds
Aleutian Tern
Aleutian Tern, 32–34 cm, breeds colonially in Alaska and Russian Far East, wintering in Southeast Asian waters — one of the most poorly tracked migrations among seabirds. Dark grey above, white below, black cap with white forehead. Piscivore; dives for small fish. Near Threatened.
Little Tern
Little Tern is one of the world's smallest terns, 21–25 cm, breeding along coastlines and rivers across Europe, Asia, Africa, and Australia. White below, grey above, with a yellow bill tipped black and a white forehead patch. Hovers and plunge-dives for small fish. Migratory; winters in tropical coasts.