Family Petrels, Shearwaters (Procellariidae)

Least Concern

Bulwer's Petrel (Bulweria bulwerii)


French: Pétrel de Bulwer German: Bulwersturmvogel Spanish: Petrel de Bulwer

Procellaria Bulwerii

Jardine and Selby

, 1828,



Sometimes considered to include B. fallax. Monotypic.


Pantropical seas, in E Atlantic breeding from Azores S to Cape Verde Is, in Pacific from E China and Bonin Is E to Hawaii, Phoenix Is and Marquesas Is. Recently found breeding on Round I, off Mauritius, in Indian Ocean#R.

Descriptive notes

26–29 cm; 75–139 g; wingspan 63–73 cm. Long-winged and long-tailed, dark-plumaged seabird, flies low over sea. Dark sooty brown to blackish brown,... read more


Two major (and three minor) calls have been described, the former type being the “Repeat Call”, a... read more


Marine and highly pelagic, usually far from land except at colonies. Breeds on barren offshore... read more

Food and feeding

Mainly small fish and squid, with minor proportions of crustaceans (e.g. shrimps) and sea striders (including Halobates spp.),... read more


Starts Apr/May at most sites, with pre-laying exodus (involving both sexes) of mean 28 days and peak egg-laying usually late May/Jun, but... read more


Mostly absent from breeding grounds Sept/Oct–Mar. Disperses over tropical and subtropical... read more

Status and conservation

Not globally threatened (Least Concern). Listed as SPEC 3 (Species of European Concern). NE Atlantic population thought to number 6000–10,000 breeding pairs on Madeira... read more

Recommended citation

Carboneras, C., Jutglar, F., de Juana, E. & Kirwan, G.M. (2020). Bulwer's Petrel (Bulweria bulwerii). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 26 February 2020).