Yellow-billed Loon vs Common Loon
Gavia adamsii 对比 Gavia immer
Side-by-Side Comparison
| 属性 | Yellow-billed Loon | Common Loon |
|---|---|---|
| 学名 | Gavia adamsii | Gavia immer |
| 目 | Gaviiformes | Gaviiformes |
| 科 | Gaviidae | Gaviidae |
| 保护状况 | Near Threatened | Least Concern |
| 体长 | — | — |
| 翼展 | 74.3 cm (29.3 in) | 73.0 cm (28.7 in) |
| 体重 | 5125.0 g (180.78 oz) | 4898.333333333333 g (172.78 oz) |
| 食性 | -- | -- |
| 产卵数 | 2 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Near Threatened
Yellow-billed Loon
Least Concern
Common Loon
About These Birds
Yellow-billed Loon
Yellow-billed Loon, 77–100 cm, is the largest loon, breeding on Arctic tundra lakes of North America and Russia, wintering on sub-Arctic coasts. Ivory-yellow upturned bill diagnostic. Otherwise similar to Common Loon. Piscivore; dives for fish in coastal waters. Near Threatened; climate-sensitive Arctic breeder.
Common Loon
普通潜鸟（约3.5公斤）是加拿大和美国北部湖泊的代表性鸟类，以其悠扬的鸣声为人所知。具有黑白色繁殖羽，包括黑色头部和颈部白色项圈。以潜水方式捕食鱼类。无危；种群数量稳定，但酸雨和铅中毒是局部威胁因素。