Small Saint Helena Petrel vs Atlantic Petrel
Bulweria bifax مقارنةً بـ Pterodroma incerta
Side-by-Side Comparison
| السمة | Small Saint Helena Petrel | Atlantic Petrel |
|---|---|---|
| الاسم العلمي | Bulweria bifax | Pterodroma incerta |
| الرتبة | Procellariiformes | Procellariiformes |
| الفصيلة | Procellariidae | Procellariidae |
| حالة الحفاظ | Extinct | Endangered |
| الطول | — | — |
| طول الجناح | — | 63,6 cm (25.0 in) |
| الوزن | 167,17 g (5.90 oz) | 515,0 g (18.17 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
حالة الحفاظ
Extinct
Small Saint Helena Petrel
Endangered
Atlantic Petrel
About These Birds
Small Saint Helena Petrel
Extinct; known only from subfossil bones from St. Helena Island. Smaller than Bulwer's Petrel; went extinct shortly after human settlement of St. Helena, likely from introduced predators. Part of the endemic St. Helena seabird community that was largely extirpated by human arrival.
Atlantic Petrel
43 cm, wingspan 104 cm. Large; dark brown above with pale belly and dusky breast-band creating hooded appearance. Breeds Tristan da Cunha and Gough Island; ranges into south Atlantic and Indian Ocean. Endangered; threatened by introduced predators and longline fisheries.