Red-necked Grebe vs Black-necked Grebe
Podiceps grisegena 对比 Podiceps nigricollis
Side-by-Side Comparison
| 属性 | Red-necked Grebe | Black-necked Grebe |
|---|---|---|
| 学名 | Podiceps grisegena | Podiceps nigricollis |
| 目 | Podicipediformes | Podicipediformes |
| 科 | Podicipedidae | Podicipedidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 33.4 cm (13.1 in) | 25.4 cm (10.0 in) |
| 体重 | 1120.6666666666667 g (39.53 oz) | 414.3333333333333 g (14.62 oz) |
| 食性 | -- | -- |
| 产卵数 | 3-5 | 1-8 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Red-necked Grebe
Least Concern
Black-necked Grebe
About These Birds
Red-necked Grebe
Red-necked Grebe (Podiceps grisegena) is a medium 40–50 cm grebe of Eurasia and North America. Breeding plumage: rich chestnut-red neck and breast; grey-white cheeks; black cap; yellow-based bill. Inhabits freshwater lakes; winters on coastal seas. Wingspan to 85 cm. Migratory; breeds in boreal zone, winters on coastal waters.
Black-necked Grebe
黑颈鸊鷉（约300克）繁殖羽具有黑色头颈和金黄色耳羽。广布于欧洲、亚洲和北美，通常在浅淡水湖泊中形成大群繁殖。以小型鱼类和甲壳动物为食，以潜水方式觅食。无危；广泛分布，在某些地区种群数量庞大。