marsh harrier

The marsh harrier is a species of hawk belonging to the subfamily Circinae. These birds are characterized by their plain appearance, long legs, and slender build, with tails that are also long. They are often observed cruising at low altitudes over marshes and meadows in search of prey, which includes mice, snakes, frogs, small birds, and insects. Marsh harriers typically measure around 50 cm (20 inches) in length and possess small beaks and facial discs formed by their face feathers. They build their nests in marshy areas or tall grasses and usually lay four to six dull whitish or bluish eggs. The marsh harrier (Circus aeruginosus) is widely distributed across the Old World, though it has been nearly exterminated in England. In the United States, the hen harrier (known as the northern harrier or marsh hawk) is a well-known harrier species.123