Bermuda Petrel vs Balearic Shearwater
Pterodroma cahow compared with Puffinus mauretanicus
Side-by-Side Comparison
| Attribute | Bermuda Petrel | Balearic Shearwater |
|---|---|---|
| Scientific Name | Pterodroma cahow | Puffinus mauretanicus |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Endangered | Critically Endangered |
| Length | — | — |
| Wingspan | 49.0 cm (19.3 in) | 48.4 cm (19.1 in) |
| Weight | 329.8 g (11.63 oz) | 514.8 g (18.16 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Endangered
Bermuda Petrel
Critically Endangered
Balearic Shearwater
About These Birds
Bermuda Petrel
38 cm. Dark grey-brown above; white below with dark partial collar. Critically Endangered; once thought extinct, rediscovered 1951 in Bermuda. Fewer than 140 breeding pairs on offshore islets. Recovery aided by artificial burrows; feeds on squid and fish in open Atlantic.
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.