Circus hudsonius

The Northern Harrier is a slim raptor with long wings, a long tail and a conspicuous white rump. It hunts low over marshes, grassland and fields with its wings held in a shallow V. A facial ruff helps it locate small mammals and birds partly by sound. Adult males are pale grey, while females and young birds are brown. The nest is placed on the ground in dense vegetation.
Locations where this species is supported by a dated first record, an unambiguous single-place outing or a reviewed assignment.