Great Shearwater vs Rapa Shearwater
Ardenna gravis comparado con Puffinus myrtae
Side-by-Side Comparison
| Atributo | Great Shearwater | Rapa Shearwater |
|---|---|---|
| Nombre científico | Ardenna gravis | Puffinus myrtae |
| Orden | Procellariiformes | Procellariiformes |
| Familia | Procellariidae | Procellariidae |
| Estado de conservación | Least Concern | Critically Endangered |
| Longitud | — | — |
| Envergadura | 63,6 cm (25.0 in) | 48,2 cm (19.0 in) |
| Peso | 832,5 g (29.37 oz) | 237,5 g (8.38 oz) |
| Dieta | -- | -- |
| Tamaño de la puesta | 1 | -- |
| Population Trend | — | — |
Habitat Comparison
Estado de conservación
Least Concern
Great Shearwater
Critically Endangered
Rapa 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.
Rapa Shearwater
30–33 cm. Dark above; white below. Breeds Rapa Island (French Polynesia). Critically Endangered with a very small population on a single island. Poorly known; threatened by introduced predators. Ranges in central south Pacific; one of the rarest shearwaters.