Westland Petrel vs Antarctic Petrel
Procellaria westlandica compared with Thalassoica antarctica
Side-by-Side Comparison
| Attribute | Westland Petrel | Antarctic Petrel |
|---|---|---|
| Scientific Name | Procellaria westlandica | Thalassoica antarctica |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Endangered | Least Concern |
| Length | — | — |
| Wingspan | 73.8 cm (29.1 in) | 59.2 cm (23.3 in) |
| Weight | 1111.5 g (39.21 oz) | 658.3333333333334 g (23.22 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Endangered
Westland Petrel
Least Concern
Antarctic Petrel
About These Birds
Westland Petrel
51 cm. Large all-black petrel; pale yellowish bill with dark culmen. Breeds only in inland forests of Westland, South Island, New Zealand. Vulnerable; the only procellariid nesting in inland forest. Migrates to southern Pacific; feeds on squid and fish.
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.