procellariiform Article

procellariiform summary

Learn about seabirds of the order Procellariiformes and their distinguishing characteristics

Below is the article summary. For the full article, see procellariiform.

procellariiform, Any of about 140 species of seabirds that make up the order Procellariiformes. All species have a characteristic powerful musky odour, caused by the excretion of stomach oil. The oil can be used as a defensive discharge through the mouth when the bird becomes alarmed. The albatrosses (family Diomedeidae); shearwaters, fulmars, prions, and large petrels (Procellariidae); diving petrels (Pelecanoididae); and storm petrels (Hydrobatidae) are recognizable by their conspicuous tubular nostrils, which project on the upper bill. This feature gives the order its alternative name, Tubinares, meaning “tube-nosed.” The feet of the birds are webbed, and the hind toe is either vestigial or missing.