Great Shearwater vs Herald Petrel
Ardenna gravis ile kıyaslandığında Pterodroma heraldica
Side-by-Side Comparison
| Özellik | Great Shearwater | Herald Petrel |
|---|---|---|
| Bilimsel Ad | Ardenna gravis | Pterodroma heraldica |
| Takım | Procellariiformes | Procellariiformes |
| Familya | Procellariidae | Procellariidae |
| Koruma Durumu | Least Concern | Least Concern |
| Uzunluk | — | — |
| Kanat Açıklığı | 63,6 cm (25.0 in) | 56,2 cm (22.1 in) |
| Ağırlık | 832,5 g (29.37 oz) | 278,5 g (9.82 oz) |
| Beslenme | -- | -- |
| Kuluçka Büyüklüğü | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Koruma Durumu
Least Concern
Great Shearwater
Least Concern
Herald 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.
Herald Petrel
37 cm. Polymorphic petrel; pale morph has white underparts with dark M-mark and partial collar; dark morph sooty brown. Breeds widely across central and south Pacific islands. Ranges in tropical Pacific; feeds on squid and fish. Closely related to Kermadec Petrel.