Antarctic Prion vs Westland Petrel
Pachyptila desolata compared with Procellaria westlandica
Side-by-Side Comparison
| Attribute | Antarctic Prion | Westland Petrel |
|---|---|---|
| Scientific Name | Pachyptila desolata | Procellaria westlandica |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Least Concern | Endangered |
| Length | — | — |
| Wingspan | 36.5 cm (14.4 in) | 73.8 cm (29.1 in) |
| Weight | 149.0 g (5.26 oz) | 1111.5 g (39.21 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Antarctic Prion
Endangered
Westland Petrel
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.
Westland Petrel
51 cm. Large all-black petrel; pale yellowish bill with dark culmen. Breeds only in inland forests of Westland, South Island, New Zealand. Vulnerable; the only procellariid nesting in inland forest. Migrates to southern Pacific; feeds on squid and fish.