A large shearwater that breeds on islands in the eastern Atlantic. After breeding, it winters off South America and southern Africa, returning to colonies in spring.
About 51 cm long with a 117 cm wingspan, it is brownish grey above and whitish below, with colours blending rather than forming a sharp contrast. The base of the bill is yellow.
It feeds in open ocean on fish, squid and crustaceans, diving or taking prey while swimming. At island colonies it lays one white egg, incubated by both sexes for 52-56 days.
An extinction-risk assessment has not been added yet.