Small Saint Helena Petrel vs Antarctic Petrel
Bulweria bifax comparé à Thalassoica antarctica
Side-by-Side Comparison
| Attribut | Small Saint Helena Petrel | Antarctic Petrel |
|---|---|---|
| Nom scientifique | Bulweria bifax | Thalassoica antarctica |
| Ordre | Procellariiformes | Procellariiformes |
| Famille | Procellariidae | Procellariidae |
| Statut de conservation | Extinct | Least Concern |
| Longueur | — | — |
| Envergure | — | 59,2 cm (23.3 in) |
| Poids | 167,17 g (5.90 oz) | 658,3333333333334 g (23.22 oz) |
| Régime alimentaire | -- | -- |
| Taille de la couvée | 1 | 1 |
| Population Trend | — | — |
Statut de conservation
Extinct
Small Saint Helena Petrel
Least Concern
Antarctic 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.
Antarctic Petrel
40–46 cm, wingspan 100–110 cm. Striking chocolate-brown and white pattern; only member of its genus. Breeds solely in Antarctica on cliff ledges; among the most southerly-nesting birds. Feeds on fish and krill beneath pack ice. Returns to colonies in October; one of the most abundant Antarctic seabirds.