Small Saint Helena Petrel vs Atlantic Petrel
Bulweria bifax compared with Pterodroma incerta
Side-by-Side Comparison
| Attribute | Small Saint Helena Petrel | Atlantic Petrel |
|---|---|---|
| Scientific Name | Bulweria bifax | Pterodroma incerta |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Extinct | Endangered |
| Length | — | — |
| Wingspan | — | 63.6 cm (25.0 in) |
| Weight | 167.17 g (5.90 oz) | 515.0 g (18.17 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Shared Habitats
None
Small Saint Helena Petrel only
None
Atlantic Petrel only
Conservation Status
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.