What is one of a family of oceanic birds (Procellaridæ) including the petrels, fulmars, and shearwaters. They are often seen in great abundance in stormy weather called?

procellarian — One of a family of oceanic birds (Procellaridæ) including the petrels, fulmars, and shearwaters. They are often seen in great abundance in stormy weather. (Webster's 1913.)

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