Great Shearwater vs Boyd's Shearwater
Ardenna gravis 对比 Puffinus boydi
Side-by-Side Comparison
| 属性 | Great Shearwater | Boyd's Shearwater |
|---|---|---|
| 学名 | Ardenna gravis | Puffinus boydi |
| 目 | Procellariiformes | Procellariiformes |
| 科 | Procellariidae | Procellariidae |
| 保护状况 | Least Concern | Not Evaluated |
| 体长 | — | — |
| 翼展 | 63.6 cm (25.0 in) | — |
| 体重 | 832.5 g (29.37 oz) | — |
| 食性 | -- | -- |
| 产卵数 | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Great Shearwater
Not Evaluated
Boyd's Shearwater
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.
Boyd's Shearwater
27 cm. Dark brown above; white below; white face with dark eye-patch. Breeds Cape Verde Islands. Ranges in tropical east Atlantic. Closely related to Barolo Shearwater; both formerly grouped in Little Shearwater complex. Near Threatened; feeds on small fish and squid.