Belcher's Gull vs Aleutian Tern
Larus belcheri 对比 Onychoprion aleuticus
Side-by-Side Comparison
| 属性 | Belcher's Gull | Aleutian Tern |
|---|---|---|
| 学名 | Larus belcheri | Onychoprion aleuticus |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Least Concern | Vulnerable |
| 体长 | — | — |
| 翼展 | 73.0 cm (28.7 in) | 52.4 cm (20.6 in) |
| 体重 | 642.5 g (22.66 oz) | 104.88 g (3.70 oz) |
| 食性 | -- | -- |
| 产卵数 | 1-3 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Belcher's Gull
Vulnerable
Aleutian Tern
About These Birds
Belcher's Gull
贝尔彻鸥栖息于秘鲁和智利太平洋沿岸，黄嘴带黑带和红色尖端为特征的鸥类。
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.