Great Shearwater vs Bulwer's Petrel
Ardenna gravis مقارنةً بـ Bulweria bulwerii
Side-by-Side Comparison
| السمة | Great Shearwater | Bulwer's Petrel |
|---|---|---|
| الاسم العلمي | Ardenna gravis | Bulweria bulwerii |
| الرتبة | Procellariiformes | Procellariiformes |
| الفصيلة | Procellariidae | Procellariidae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | — |
| طول الجناح | 63,6 cm (25.0 in) | 40,6 cm (16.0 in) |
| الوزن | 832,5 g (29.37 oz) | 103,16666666666667 g (3.64 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
حالة الحفاظ
Least Concern
Great Shearwater
Least Concern
Bulwer'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.
Bulwer's Petrel
26–28 cm, wingspan 68–73 cm. All-dark chocolate-brown with long wedge-shaped tail; pale diagonal wing-bar. Breeds subtropical Atlantic and Pacific islands; migrates to tropical oceans. Buoyant, weaving flight close to water. Feeds on squid and fish at night.