Balearic Shearwater vs Manx Shearwater
Puffinus mauretanicus compared with Puffinus puffinus
Side-by-Side Comparison
| Attribute | Balearic Shearwater | Manx Shearwater |
|---|---|---|
| Scientific Name | Puffinus mauretanicus | Puffinus puffinus |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Critically Endangered | Least Concern |
| Length | — | — |
| Wingspan | 48.4 cm (19.1 in) | 46.5 cm (18.3 in) |
| Weight | 514.8 g (18.16 oz) | 482.25 g (17.01 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Critically Endangered
Balearic Shearwater
Least Concern
Manx Shearwater
About These Birds
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.
Manx Shearwater
30–38 cm, wingspan 76–89 cm. Classic small shearwater; jet-black above, brilliant white below; rapid wing-beats and stiff glides. Breeds UK, Faroe, Iceland, and Canary islands; makes extraordinary migrations to south Atlantic. Feeds on fish and squid; nocturnal at colonies. Near Threatened.