Great Shearwater vs Balearic Shearwater
Ardenna gravis comparado con Puffinus mauretanicus
Side-by-Side Comparison
| Atributo | Great Shearwater | Balearic Shearwater |
|---|---|---|
| Nombre científico | Ardenna gravis | Puffinus mauretanicus |
| Orden | Procellariiformes | Procellariiformes |
| Familia | Procellariidae | Procellariidae |
| Estado de conservación | Least Concern | Critically Endangered |
| Longitud | — | — |
| Envergadura | 63,6 cm (25.0 in) | 48,4 cm (19.1 in) |
| Peso | 832,5 g (29.37 oz) | 514,8 g (18.16 oz) |
| Dieta | -- | -- |
| Tamaño de la puesta | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Estado de conservación
Least Concern
Great Shearwater
Critically Endangered
Balearic Shearwater
About These Birds
Great Shearwater
43–51 cm, wingspan 105–122 cm. Large; dark brown above with white underparts, dark cap, and distinctive scaly pattern on upperwing. Breeds Tristan da Cunha, Gough, and Falklands; migrates to North Atlantic. Feeds on fish and squid; spectacular post-breeding migration past UK coasts.
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.