Collared Petrel vs Antarctic Petrel
Pterodroma brevipes compared with Thalassoica antarctica
Side-by-Side Comparison
| Attribute | Collared Petrel | Antarctic Petrel |
|---|---|---|
| Scientific Name | Pterodroma brevipes | Thalassoica antarctica |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Vulnerable | Least Concern |
| Length | — | — |
| Wingspan | 42.4 cm (16.7 in) | 59.2 cm (23.3 in) |
| Weight | 137.0 g (4.83 oz) | 658.3333333333334 g (23.22 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Vulnerable
Collared Petrel
Least Concern
Antarctic Petrel
About These Birds
Collared Petrel
30 cm. Polymorphic; pale morph has grey collar band contrasting with white breast; dark morph sooty grey. Breeds Fiji, Vanuatu, Tonga, Samoa. Vulnerable; threatened by introduced predators. Ranges in tropical South 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.