Har·ri·er, n.
 1. One who harries.
 2. Zool. One of several species of hawks or buzzards of the genus Circus which fly low and harry small animals or birds, -- as the European marsh harrier (Circus aeruginosus), and the hen harrier (Circus cyaneus).
 Harrier hawk Zool., one of several species of American hawks of the genus Micrastur.
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