Great Shearwater vs Zino's Petrel
Ardenna gravis 比較対象 Pterodroma madeira
Side-by-Side Comparison
| 属性 | Great Shearwater | Zino's Petrel |
|---|---|---|
| 学名 | Ardenna gravis | Pterodroma madeira |
| 目 | Procellariiformes | Procellariiformes |
| 科 | Procellariidae | Procellariidae |
| 保全状況 | Least Concern | Endangered |
| 体長 | — | — |
| 翼開長 | 63.6 cm (25.0 in) | 50.6 cm (19.9 in) |
| 体重 | 832.5 g (29.37 oz) | 227.5 g (8.02 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Least Concern
Great Shearwater
Endangered
Zino's Petrel
About These Birds
Great Shearwater
全長43〜51cm、翼開長105〜122cm。大型；上面は暗褐色、下面は白く、暗色の帽子と特徴的な翼上面の鱗状模様を持つ。トリスタン・ダ・クーニャ、ゴフ、フォークランド諸島で繁殖し、北大西洋へ渡る。魚や烏賊を食べる；繁殖後の渡りでは英国沿岸を大群が通過する光景が見事。
Zino's Petrel
33–36 cm. Small gadfly petrel; grey-brown above with white underparts and partial dark breast-band. Critically Endangered; breeds only on Madeira's high central mountains (fewer than 65 pairs). Threatened by light pollution, introduced predators. Long-distance migrations to Atlantic.