The Hen Harrier (Circus cyaneus) or Northern Harrier (in North America) is a bird of prey. It breeds throughout the northern parts of the northern hemisphere in Canada and the northernmost USA, and in northern Eurasia. This species is polytypic, with two subspecies.
The female gives a whistled piih-eh when receiving food from the male, and her alarm call is chit-it-it-it-it-et-it. The male calls chek-chek-chek, with a more bouncing chuk-uk-uk-uk during his display flight
This medium-sized raptor breeds on moorland, bogs and (in Europe) farmland. The nest is on the ground.
This is a typical harrier, with long wings held in a shallow V in its low, contour-hugging, flight. Hen Harriers hunt small mammals and birds, surprising them as they drift low over fields and moors. This harrier tend to be a very vocal bird while it glides over its hunting ground