Cook's Petrel vs Balearic Shearwater
Pterodroma cookii 比較対象 Puffinus mauretanicus
Side-by-Side Comparison
| 属性 | Cook's Petrel | Balearic Shearwater |
|---|---|---|
| 学名 | Pterodroma cookii | Puffinus mauretanicus |
| 目 | Procellariiformes | Procellariiformes |
| 科 | Procellariidae | Procellariidae |
| 保全状況 | Vulnerable | Critically Endangered |
| 体長 | — | — |
| 翼開長 | 42.6 cm (16.8 in) | 48.4 cm (19.1 in) |
| 体重 | 194.33333333333334 g (6.85 oz) | 514.8 g (18.16 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Vulnerable
Cook's Petrel
Critically Endangered
Balearic Shearwater
About These Birds
Cook's Petrel
26–30 cm, wingspan 66 cm. Pale grey above with dark M-mark; white underparts with dark partial collar and carpal bar. Breeds only on islands off New Zealand (Little Barrier, Codfish). Vulnerable; migrates to North Pacific. Feeds on squid and crustaceans.
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.