Heinroth's Shearwater vs Antarctic Petrel
Puffinus heinrothi compared with Thalassoica antarctica
Side-by-Side Comparison
| Attribute | Heinroth's Shearwater | Antarctic Petrel |
|---|---|---|
| Scientific Name | Puffinus heinrothi | Thalassoica antarctica |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Vulnerable | Least Concern |
| Length | — | — |
| Wingspan | 35.7 cm (14.1 in) | 59.2 cm (23.3 in) |
| Weight | 82.0 g (2.89 oz) | 658.3333333333334 g (23.22 oz) |
| Diet | -- | -- |
| Clutch Size | -- | 1 |
| Population Trend | — | — |
Conservation Status
Vulnerable
Heinroth's Shearwater
Least Concern
Antarctic Petrel
About These Birds
Heinroth's Shearwater
27 cm. Small dark shearwater; all sooty-brown with pale bill. Breeds Solomon Islands and Papua New Guinea. Critically Endangered; extremely poorly known with only a handful of records. Breeding biology almost completely unknown; one of the rarest and least-studied seabirds.
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.