Ancient Murrelet vs Common Murre
Synthliboramphus antiquus 对比 Uria aalge
Side-by-Side Comparison
| 属性 | Ancient Murrelet | Common Murre |
|---|---|---|
| 学名 | Synthliboramphus antiquus | Uria aalge |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Alcidae | Alcidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 27.1 cm (10.7 in) | 39.3 cm (15.5 in) |
| 体重 | 208.16666666666666 g (7.34 oz) | 984.0 g (34.71 oz) |
| 食性 | -- | -- |
| 产卵数 | 2 | 1 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Ancient Murrelet
Least Concern
Common Murre
About These Birds
Ancient Murrelet
Ancient Murrelet, 24–27 cm, breeds in burrows on North Pacific islands from British Columbia to Japan. Black hood, grey back, white underparts with yellow bill. Nocturnal at colonies to avoid predators. Chicks lead-march to sea within days of hatching — abandoning the nest very early. Planktivore and piscivore.
Common Murre
崖海鸦（约1公斤）是一种大型海雀，翼展约70厘米，在悬崖峭壁上密集繁殖，不筑巢，直接将卵产在岩脊上——卵形为梨形，滚动时呈圆弧形，不易滚落。以鱼类为食。无危；种群数量庞大，但在某些地区面临延绳钓混获和油污的威胁。