Antarctic Prion vs Black-vented Shearwater
Pachyptila desolata compared with Puffinus opisthomelas
Side-by-Side Comparison
| Attribute | Antarctic Prion | Black-vented Shearwater |
|---|---|---|
| Scientific Name | Pachyptila desolata | Puffinus opisthomelas |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Least Concern | Near Threatened |
| Length | — | — |
| Wingspan | 36.5 cm (14.4 in) | 46.6 cm (18.3 in) |
| Weight | 149.0 g (5.26 oz) | 420.5833333333333 g (14.84 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Antarctic Prion
Near Threatened
Black-vented Shearwater
About These Birds
Antarctic Prion
25–28 cm, wingspan 58–66 cm. Classic prion pattern: pale blue-grey, white below, bold dark M across upperwing. Medium-broad bill. Most abundant and widespread prion; breeds South Georgia, Heard, Kerguelen, Macquarie. Feeds on crustaceans; makes deep dives compared to congeners.
Black-vented Shearwater
30–38 cm. Dark above with blackish undertail and vent; white below. Breeds islands off Baja California; ranges offshore in eastern Pacific to Peru. Near Threatened; affected by introduced predators on breeding islands. Feeds on fish; often seen from Baja California shore.