Bryan's Shearwater vs Balearic Shearwater
Puffinus bryani 比較対象 Puffinus mauretanicus
Side-by-Side Comparison
| 属性 | Bryan's Shearwater | Balearic Shearwater |
|---|---|---|
| 学名 | Puffinus bryani | Puffinus mauretanicus |
| 目 | Procellariiformes | Procellariiformes |
| 科 | Procellariidae | Procellariidae |
| 保全状況 | Critically Endangered | Critically Endangered |
| 体長 | — | — |
| 翼開長 | 33.0 cm (13.0 in) | 48.4 cm (19.1 in) |
| 体重 | 147.0 g (5.19 oz) | 514.8 g (18.16 oz) |
| 食性 | -- | -- |
| 一腹卵数 | -- | 1 |
| Population Trend | — | — |
Habitat Comparison
保全状況
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.