Bryan's Shearwater vs Antarctic Petrel
Puffinus bryani compared with Thalassoica antarctica
Side-by-Side Comparison
| Attribute | Bryan's Shearwater | Antarctic Petrel |
|---|---|---|
| Scientific Name | Puffinus bryani | Thalassoica antarctica |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Critically Endangered | Least Concern |
| Length | — | — |
| Wingspan | 33.0 cm (13.0 in) | 59.2 cm (23.3 in) |
| Weight | 147.0 g (5.19 oz) | 658.3333333333334 g (23.22 oz) |
| Diet | -- | -- |
| Clutch Size | -- | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Critically Endangered
Bryan's Shearwater
Least Concern
Antarctic Petrel
About These Birds
Bryan's Shearwater
27 cm. Small shearwater; dark brown above, white below with dark smudging on flanks. Known from only a few specimens collected at Midway Atoll; Critically Endangered or possibly extinct. No confirmed breeding in decades; one of the least-known shearwaters.
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.