Antarctic Prion vs Cook's Petrel
Pachyptila desolata compared with Pterodroma cookii
Side-by-Side Comparison
| Attribute | Antarctic Prion | Cook's Petrel |
|---|---|---|
| Scientific Name | Pachyptila desolata | Pterodroma cookii |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Least Concern | Vulnerable |
| Length | — | — |
| Wingspan | 36.5 cm (14.4 in) | 42.6 cm (16.8 in) |
| Weight | 149.0 g (5.26 oz) | 194.33333333333334 g (6.85 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Antarctic Prion
Vulnerable
Cook's 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.
Cook's Petrel
26–30 cm, wingspan 66 cm. Pale grey above with dark M-mark; white underparts with dark partial collar and carpal bar. Breeds only on islands off New Zealand (Little Barrier, Codfish). Vulnerable; migrates to North Pacific. Feeds on squid and crustaceans.