Jouanin's Petrel vs Balearic Shearwater
Bulweria fallax compared with Puffinus mauretanicus
Side-by-Side Comparison
| Attribute | Jouanin's Petrel | Balearic Shearwater |
|---|---|---|
| Scientific Name | Bulweria fallax | Puffinus mauretanicus |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Near Threatened | Critically Endangered |
| Length | — | — |
| Wingspan | 48.2 cm (19.0 in) | 48.4 cm (19.1 in) |
| Weight | 167.5 g (5.91 oz) | 514.8 g (18.16 oz) |
| Diet | -- | -- |
| Clutch Size | -- | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Near Threatened
Jouanin's Petrel
Critically Endangered
Balearic Shearwater
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.
Balearic Shearwater
30–38 cm. Brown above; variably dirty-white to brown below; often shows brown smudging on flanks. Breeds only Balearic Islands, Spain. Critically Endangered with fewer than 3,000 pairs; faces extinction. Migrates to NE Atlantic; threatened by predators, fishing bycatch, and tourist development.