Murphy's Petrel vs Balearic Shearwater
Pterodroma ultima 比較対象 Puffinus mauretanicus
Side-by-Side Comparison
| 属性 | Murphy's Petrel | Balearic Shearwater |
|---|---|---|
| 学名 | Pterodroma ultima | Puffinus mauretanicus |
| 目 | Procellariiformes | Procellariiformes |
| 科 | Procellariidae | Procellariidae |
| 保全状況 | Least Concern | Critically Endangered |
| 体長 | — | — |
| 翼開長 | 52.0 cm (20.5 in) | 48.4 cm (19.1 in) |
| 体重 | 380.0 g (13.40 oz) | 514.8 g (18.16 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Least Concern
Murphy's Petrel
Critically Endangered
Balearic Shearwater
About These Birds
Murphy's Petrel
39–41 cm. Dark grey-brown above; variable pale grey below with dusky underwing. Breeds widely across central Pacific (Pitcairn, Austral, Henderson islands). Migrates to North Pacific in non-breeding season. Feeds on squid and fish; nocturnal at breeding colonies; Near Threatened.
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.