Northern Harrier

Circus cyaneus

L 18"  ws 43" wt 15oz (420 g)

Slender with long wings and tail; wings raised in dihedral.

Wingbeats smooth, rowing; long wings and tail; slender body.

Voice: Two call types.  Piercing, insistent whistle eeeya or high, very thin sseeeew given mainly by female and young.  Dry clucking or barking series chef chef chef . . . to rapid staccato kekekekeke . . . given mainly by male.