Large Saint Helena Petrel vs Antarctic Petrel
Pterodroma rupinarum compared with Thalassoica antarctica
Side-by-Side Comparison
| Attribute | Large Saint Helena Petrel | Antarctic Petrel |
|---|---|---|
| Scientific Name | Pterodroma rupinarum | Thalassoica antarctica |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Extinct | Least Concern |
| Length | — | — |
| Wingspan | — | 59.2 cm (23.3 in) |
| Weight | — | 658.3333333333334 g (23.22 oz) |
| Diet | -- | -- |
| Clutch Size | -- | 1 |
| Population Trend | — | — |
Conservation Status
Extinct
Large Saint Helena Petrel
Least Concern
Antarctic Petrel
About These Birds
Large Saint Helena Petrel
Extinct; known only from subfossil bones found on St. Helena. Medium-large petrel that went extinct within the last few centuries, likely due to human settlement, habitat destruction, and introduced predators. Related to living Pterodroma species; part of the endemic St. Helena avifauna.
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.