Juan Fernandez Petrel vs Balearic Shearwater
Pterodroma externa 비교 대상 Puffinus mauretanicus
Side-by-Side Comparison
| 속성 | Juan Fernandez Petrel | Balearic Shearwater |
|---|---|---|
| 학명 | Pterodroma externa | Puffinus mauretanicus |
| 목 | Procellariiformes | Procellariiformes |
| 과 | Procellariidae | Procellariidae |
| 보전 상태 | Vulnerable | Critically Endangered |
| 체장 | — | — |
| 날개 폭 | 58.3 cm (23.0 in) | 48.4 cm (19.1 in) |
| 체중 | 432.5 g (15.26 oz) | 514.8 g (18.16 oz) |
| 식성 | -- | -- |
| 산란 수 | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
보전 상태
Vulnerable
Juan Fernandez Petrel
Critically Endangered
Balearic Shearwater
About These Birds
Juan Fernandez Petrel
43 cm, wingspan 97 cm. Large; dark grey-brown above with white nape and underparts; dark carpal bar and partial collar. Breeds Juan Fernandez Islands (Chile); ranges across subtropical Pacific. Vulnerable due to small breeding range; feeds on fish and squid.
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.