European Shag vs Double-crested Cormorant
Gulosus aristotelis 比較対象 Nannopterum auritum
Side-by-Side Comparison
| 属性 | European Shag | Double-crested Cormorant |
|---|---|---|
| 学名 | Gulosus aristotelis | Nannopterum auritum |
| 目 | Suliformes | Suliformes |
| 科 | Phalacrocoracidae | Phalacrocoracidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 52.5 cm (20.7 in) | — |
| 体重 | 1777.25 g (62.69 oz) | 1936.0 g (68.29 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 1-6 | 3-4 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Least Concern
European Shag
Least Concern
Double-crested Cormorant
About These Birds
European Shag
体長68〜78 cm、翼幅95〜110 cm。光沢のある緑色を帯びた全黒色；繁殖期には短い直立した冠羽；黄色い口角。厳密に海洋性で、西ヨーロッパと地中海の岩礁海岸に繁殖。澄んだ沿岸水域で潜水して魚を捕食。絶滅危惧種；石油流出と乱獲が脅威。
Double-crested Cormorant
70–90 cm, wingspan 114–123 cm. Dark with two small orange ear tufts in breeding; orange-yellow facial skin. Widespread across North America and Central America. Highly adaptable; colonial nester. Controversial where it competes with commercial fisheries; feeds almost exclusively on fish.