Bulwer's Petrel vs Balearic Shearwater
Bulweria bulwerii verglichen mit Puffinus mauretanicus
Side-by-Side Comparison
| Merkmal | Bulwer's Petrel | Balearic Shearwater |
|---|---|---|
| Wissenschaftlicher Name | Bulweria bulwerii | Puffinus mauretanicus |
| Ordnung | Procellariiformes | Procellariiformes |
| Familie | Procellariidae | Procellariidae |
| Erhaltungsstatus | Least Concern | Critically Endangered |
| Länge | — | — |
| Flügelspannweite | 40,6 cm (16.0 in) | 48,4 cm (19.1 in) |
| Gewicht | 103,16666666666667 g (3.64 oz) | 514,8 g (18.16 oz) |
| Ernährung | -- | -- |
| Gelegegröße | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Erhaltungsstatus
Least Concern
Bulwer's Petrel
Critically Endangered
Balearic Shearwater
About These Birds
Bulwer's Petrel
26–28 cm, wingspan 68–73 cm. All-dark chocolate-brown with long wedge-shaped tail; pale diagonal wing-bar. Breeds subtropical Atlantic and Pacific islands; migrates to tropical oceans. Buoyant, weaving flight close to water. Feeds on squid and fish at night.
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.