European Herring Gull vs Aleutian Tern
Larus argentatus 对比 Onychoprion aleuticus
Side-by-Side Comparison
| 属性 | European Herring Gull | Aleutian Tern |
|---|---|---|
| 学名 | Larus argentatus | Onychoprion aleuticus |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Least Concern | Vulnerable |
| 体长 | — | — |
| 翼展 | 86.2 cm (33.9 in) | 52.4 cm (20.6 in) |
| 体重 | 1110.0 g (39.15 oz) | 104.88 g (3.70 oz) |
| 食性 | -- | -- |
| 产卵数 | 2-3 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
European Herring Gull
Vulnerable
Aleutian Tern
About These Birds
European Herring Gull
银鸥（约1.1公斤）是北大西洋最具代表性的鸥类，具有灰色翅膀、粉红色腿和黄色喙（下喙有红斑）。高度适应城市和沿海生境，以各类食物为食，包括废弃食物和小型猎物。无危；种群数量庞大，在某些地区被认为过多。
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.