Great Shearwater vs Cook's Petrel
Ardenna gravis مقارنةً بـ Pterodroma cookii
Side-by-Side Comparison
| السمة | Great Shearwater | Cook's Petrel |
|---|---|---|
| الاسم العلمي | Ardenna gravis | Pterodroma cookii |
| الرتبة | Procellariiformes | Procellariiformes |
| الفصيلة | Procellariidae | Procellariidae |
| حالة الحفاظ | Least Concern | Vulnerable |
| الطول | — | — |
| طول الجناح | 63,6 cm (25.0 in) | 42,6 cm (16.8 in) |
| الوزن | 832,5 g (29.37 oz) | 194,33333333333334 g (6.85 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
حالة الحفاظ
Least Concern
Great Shearwater
Vulnerable
Cook's 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.
Cook's Petrel
26–30 cm, wingspan 66 cm. Pale grey above with dark M-mark; white underparts with dark partial collar and carpal bar. Breeds only on islands off New Zealand (Little Barrier, Codfish). Vulnerable; migrates to North Pacific. Feeds on squid and crustaceans.