Wedge-tailed Shearwater vs Balearic Shearwater
Ardenna pacifica 比較対象 Puffinus mauretanicus
Side-by-Side Comparison
| 属性 | Wedge-tailed Shearwater | Balearic Shearwater |
|---|---|---|
| 学名 | Ardenna pacifica | Puffinus mauretanicus |
| 目 | Procellariiformes | Procellariiformes |
| 科 | Procellariidae | Procellariidae |
| 保全状況 | Least Concern | Critically Endangered |
| 体長 | — | — |
| 翼開長 | 59.4 cm (23.4 in) | 48.4 cm (19.1 in) |
| 体重 | 435.0 g (15.34 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
Wedge-tailed Shearwater
Critically Endangered
Balearic Shearwater
About These Birds
Wedge-tailed Shearwater
全長38〜46cm、翼開長97〜105cm。楔形の長い尾が識別のポイント；上面は暗褐色；腹面は多型（暗色型または白腹型）。熱帯太平洋・インド洋の島々で繁殖。外洋に広く分布。魚や烏賊を食べ、しばしばマグロと群れをなす。普通種で広域分布。
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.