Great Shearwater vs Large Saint Helena Petrel
Ardenna gravis comparado con Pterodroma rupinarum
Side-by-Side Comparison
| Atributo | Great Shearwater | Large Saint Helena Petrel |
|---|---|---|
| Nombre científico | Ardenna gravis | Pterodroma rupinarum |
| Orden | Procellariiformes | Procellariiformes |
| Familia | Procellariidae | Procellariidae |
| Estado de conservación | Least Concern | Extinct |
| Longitud | — | — |
| Envergadura | 63,6 cm (25.0 in) | — |
| Peso | 832,5 g (29.37 oz) | — |
| Dieta | -- | -- |
| Tamaño de la puesta | 1 | -- |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Ninguno
Great Shearwater only
Large Saint Helena Petrel only
Ninguno
Estado de conservación
Least Concern
Great Shearwater
Extinct
Large Saint Helena Petrel
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.
Large Saint Helena Petrel
Extinct; known only from subfossil bones found on St. Helena. Medium-large petrel that went extinct within the last few centuries, likely due to human settlement, habitat destruction, and introduced predators. Related to living Pterodroma species; part of the endemic St. Helena avifauna.