MacGillivray's Prion vs Balearic Shearwater
Pachyptila macgillivrayi compared with Puffinus mauretanicus
Side-by-Side Comparison
| Attribute | MacGillivray's Prion | Balearic Shearwater |
|---|---|---|
| Scientific Name | Pachyptila macgillivrayi | Puffinus mauretanicus |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Critically Endangered | Critically Endangered |
| Length | — | — |
| Wingspan | 38.6 cm (15.2 in) | 48.4 cm (19.1 in) |
| Weight | 162.5 g (5.73 oz) | 514.8 g (18.16 oz) |
| Diet | -- | -- |
| Clutch Size | -- | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Critically Endangered
MacGillivray's Prion
Critically Endangered
Balearic Shearwater
About These Birds
MacGillivray's Prion
25–27 cm. Medium-billed prion intermediate between Broad-billed and Fairy prions; pale blue-grey with dark M-mark. Breeds St. Paul and Amsterdam islands in southern Indian Ocean. Very restricted range; feeds on zooplankton and small crustaceans at sea surface.
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.