Balearic Shearwater vs Christmas Shearwater
Puffinus mauretanicus 对比 Puffinus nativitatis
Side-by-Side Comparison
| 属性 | Balearic Shearwater | Christmas Shearwater |
|---|---|---|
| 学名 | Puffinus mauretanicus | Puffinus nativitatis |
| 目 | Procellariiformes | Procellariiformes |
| 科 | Procellariidae | Procellariidae |
| 保护状况 | Critically Endangered | Least Concern |
| 体长 | — | — |
| 翼展 | 48.4 cm (19.1 in) | 47.1 cm (18.5 in) |
| 体重 | 514.8 g (18.16 oz) | 357.5 g (12.61 oz) |
| 食性 | -- | -- |
| 产卵数 | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Critically Endangered
Balearic Shearwater
Least Concern
Christmas Shearwater
About These Birds
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.
Christmas Shearwater
35 cm. All-dark sooty-brown shearwater; dark bill and feet. Breeds Christmas and Palmyra islands in central Pacific; ranges in tropical Pacific. Feeds on fish and squid. Distinguished from other dark shearwaters by small size and tropical Pacific range; Near Threatened.