Great Shearwater vs Subantarctic Shearwater
Ardenna gravis ile kıyaslandığında Puffinus elegans
Side-by-Side Comparison
| Özellik | Great Shearwater | Subantarctic Shearwater |
|---|---|---|
| Bilimsel Ad | Ardenna gravis | Puffinus elegans |
| Takım | Procellariiformes | Procellariiformes |
| Familya | Procellariidae | Procellariidae |
| Koruma Durumu | Least Concern | Least Concern |
| Uzunluk | — | — |
| Kanat Açıklığı | 63,6 cm (25.0 in) | 36,8 cm (14.5 in) |
| Ağırlık | 832,5 g (29.37 oz) | 222,5 g (7.85 oz) |
| Beslenme | -- | -- |
| Kuluçka Büyüklüğü | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Ortak Yaşam Alanları
Great Shearwater only
Hiçbiri
Subantarctic Shearwater only
Koruma Durumu
Least Concern
Great Shearwater
Least Concern
Subantarctic 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.
Subantarctic Shearwater
27–30 cm. Dark above; white below with clean sharp borders; slightly larger than related small shearwaters. Breeds subantarctic islands (Tristan da Cunha, Gough, St. Paul). Ranges in subantarctic Southern Ocean. Separated from Little Shearwater by range and subtle differences.