Great Shearwater vs Bannerman's Shearwater
Ardenna gravis ile kıyaslandığında Puffinus bannermani
Side-by-Side Comparison
| Özellik | Great Shearwater | Bannerman's Shearwater |
|---|---|---|
| Bilimsel Ad | Ardenna gravis | Puffinus bannermani |
| Takım | Procellariiformes | Procellariiformes |
| Familya | Procellariidae | Procellariidae |
| Koruma Durumu | Least Concern | Endangered |
| Uzunluk | — | — |
| Kanat Açıklığı | 63,6 cm (25.0 in) | 41,6 cm (16.4 in) |
| Ağırlık | 832,5 g (29.37 oz) | 192,8 g (6.80 oz) |
| Beslenme | -- | -- |
| Kuluçka Büyüklüğü | 1 | -- |
| Population Trend | — | — |
Habitat Comparison
Koruma Durumu
Least Concern
Great Shearwater
Endangered
Bannerman'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.
Bannerman's Shearwater
30 cm. Dark above; white below with dark vent and undertail. Breeds Bonin (Ogasawara) Islands and Volcano Islands, Japan. Endangered; very small population threatened by rats. Closely related to Newell's Shearwater; ranges in north Pacific.