Bryan's Shearwater vs Balearic Shearwater
Puffinus bryani compared with Puffinus mauretanicus
Side-by-Side Comparison
| Attribute | Bryan's Shearwater | Balearic Shearwater |
|---|---|---|
| Scientific Name | Puffinus bryani | Puffinus mauretanicus |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Critically Endangered | Critically Endangered |
| Length | — | — |
| Wingspan | 33.0 cm (13.0 in) | 48.4 cm (19.1 in) |
| Weight | 147.0 g (5.19 oz) | 514.8 g (18.16 oz) |
| Diet | -- | -- |
| Clutch Size | -- | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Critically Endangered
Bryan's Shearwater
Critically Endangered
Balearic Shearwater
About These Birds
Bryan's Shearwater
27 cm. Small shearwater; dark brown above, white below with dark smudging on flanks. Known from only a few specimens collected at Midway Atoll; Critically Endangered or possibly extinct. No confirmed breeding in decades; one of the least-known shearwaters.
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.