Red-necked Grebe vs Southern Silvery Grebe
Podiceps grisegena 比較対象 Podiceps occipitalis
Side-by-Side Comparison
| 属性 | Red-necked Grebe | Southern Silvery Grebe |
|---|---|---|
| 学名 | Podiceps grisegena | Podiceps occipitalis |
| 目 | Podicipediformes | Podicipediformes |
| 科 | Podicipedidae | Podicipedidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 33.4 cm (13.1 in) | 25.2 cm (9.9 in) |
| 体重 | 1120.6666666666667 g (39.53 oz) | 333.0 g (11.75 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 3-5 | 1-6 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Least Concern
Red-necked Grebe
Least Concern
Southern Silvery 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.
Southern Silvery Grebe
Southern Silvery Grebe (Podiceps occipitalis) is a small 28–34 cm Andean and sub-Antarctic grebe. Pale silvery-grey face and neck contrast with darker grey cap; yellow eye. Inhabits high-altitude Andean lakes in Peru, Bolivia, Chile, and Argentina, also Falkland Islands. Locally common at altitude. Feeds on small invertebrates and fish.