Great Shearwater vs Great-winged Petrel
Ardenna gravis 比較対象 Pterodroma macroptera
Side-by-Side Comparison
| 属性 | Great Shearwater | Great-winged Petrel |
|---|---|---|
| 学名 | Ardenna gravis | Pterodroma macroptera |
| 目 | Procellariiformes | Procellariiformes |
| 科 | Procellariidae | Procellariidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 63.6 cm (25.0 in) | 60.7 cm (23.9 in) |
| 体重 | 832.5 g (29.37 oz) | 548.75 g (19.36 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Least Concern
Great Shearwater
Least Concern
Great-winged 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。
Great-winged Petrel
41 cm, wingspan 97 cm. Large all-dark gadfly petrel; dusky bill, black feet. Breeds on islands from Tristan da Cunha to SW Australia and New Zealand. Ranges widely in southern Atlantic, Indian, and Pacific oceans. Flies with characteristic high arcing; feeds on squid and fish.