Newell's Shearwater vs Antarctic Petrel
Puffinus newelli compared with Thalassoica antarctica
Side-by-Side Comparison
| Attribute | Newell's Shearwater | Antarctic Petrel |
|---|---|---|
| Scientific Name | Puffinus newelli | Thalassoica antarctica |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Critically Endangered | Least Concern |
| Length | — | — |
| Wingspan | 48.2 cm (19.0 in) | 59.2 cm (23.3 in) |
| Weight | 382.5 g (13.49 oz) | 658.3333333333334 g (23.22 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Critically Endangered
Newell's Shearwater
Least Concern
Antarctic Petrel
About These Birds
Newell's Shearwater
33 cm. Dark above; white below with variable dark markings on flanks and vent. Breeds Kauai and possibly other Hawaiian islands. Endangered; threatened by introduced predators, light attraction, and vehicle strikes. Migrates to western Pacific; feeds on fish and squid.
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.