Great Shearwater vs Black-capped Petrel
Ardenna gravis 对比 Pterodroma hasitata
Side-by-Side Comparison
| 属性 | Great Shearwater | Black-capped Petrel |
|---|---|---|
| 学名 | Ardenna gravis | Pterodroma hasitata |
| 目 | Procellariiformes | Procellariiformes |
| 科 | Procellariidae | Procellariidae |
| 保护状况 | Least Concern | Endangered |
| 体长 | — | — |
| 翼展 | 63.6 cm (25.0 in) | 56.6 cm (22.3 in) |
| 体重 | 832.5 g (29.37 oz) | 443.8333333333333 g (15.66 oz) |
| 食性 | -- | -- |
| 产卵数 | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Great Shearwater
Endangered
Black-capped Petrel
About These Birds
Great Shearwater
43–51 cm, wingspan 105–122 cm. Large; dark brown above with white underparts, dark cap, and distinctive scaly pattern on upperwing. Breeds Tristan da Cunha, Gough, and Falklands; migrates to North Atlantic. Feeds on fish and squid; spectacular post-breeding migration past UK coasts.
Black-capped Petrel
40 cm. Large gadfly petrel; dark cap and upperparts, white underparts with dark carpal bar. Breeds Hispaniola and Cuba; once very abundant. Endangered; longline bycatch and habitat loss are key threats. Ranges widely in western and central Atlantic; crepuscular at colonies.