Sooty Shearwater vs Antarctic Petrel
Ardenna grisea compared with Thalassoica antarctica
Side-by-Side Comparison
| Attribute | Sooty Shearwater | Antarctic Petrel |
|---|---|---|
| Scientific Name | Ardenna grisea | Thalassoica antarctica |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Near Threatened | Least Concern |
| Length | — | — |
| Wingspan | 59.1 cm (23.3 in) | 59.2 cm (23.3 in) |
| Weight | 814.0 g (28.71 oz) | 658.3333333333334 g (23.22 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Near Threatened
Sooty Shearwater
Least Concern
Antarctic Petrel
About These Birds
Sooty Shearwater
40–51 cm, wingspan 94–110 cm. All dark sooty-brown with silvery-white underwing flash. Breeds New Zealand and southern South America; undertakes one of the longest migrations of any animal to North Pacific and Atlantic. Feeds on fish, squid, and krill. Near Threatened; millions estimated.
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.