Wikipedia:Today's featured article/October 22, 2006

The family Procellariidae is a group of seabirds which comprises the fulmarine petrels, the gadfly petrels, the prions and the shearwaters. This family is part of the bird order Procellariiformes. The procellariids are the most numerous family of tubenoses, and the most diverse. They range in size from the giant petrels, which are almost as large as the albatrosses, to the prions, which are as small as the larger storm-petrels. They feed on fish, squid and crustacea, with many also taking fisheries discards and carrion. All species are accomplished long-distance foragers, and many undertake long trans-equatorial migrations. They are colonial breeders, exhibiting long-term mate fidelity and site philopatry. In all species, each pair lays a single egg per breeding season. Their incubation times and chick-rearing periods are exceptionally long compared to other birds. (more...)

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