Jouanin's Petrel vs Antarctic Prion
Bulweria fallax compared with Pachyptila desolata
Side-by-Side Comparison
| Attribute | Jouanin's Petrel | Antarctic Prion |
|---|---|---|
| Scientific Name | Bulweria fallax | Pachyptila desolata |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Near Threatened | Least Concern |
| Length | — | — |
| Wingspan | 48.2 cm (19.0 in) | 36.5 cm (14.4 in) |
| Weight | 167.5 g (5.91 oz) | 149.0 g (5.26 oz) |
| Diet | -- | -- |
| Clutch Size | -- | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Near Threatened
Jouanin's Petrel
Least Concern
Antarctic Prion
About These Birds
Jouanin's Petrel
43–45 cm. Larger than Bulwer's Petrel; all sooty-brown with a wedge-shaped tail and faint pale wing-bar. Breeds southern Arabian Sea islands (Socotra region); ranges in Indian Ocean. Near Threatened; poorly studied. Feeds on squid and fish; crepuscular and nocturnal at sea.
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.