Circus aeruginosus
The Western Marsh Harrier, scientific name *Circus aeruginosus*, is a robust and distinctive medium-sized raptor specializing in wetland habitats across Europe, Asia, and parts of Africa. Males typically measure 48-56 cm in length with a wingspan of 115-130 cm and weigh 400-670g, showcasing a striking plumage of streaky pale brown on the head and breast, rufous underparts, and iconic tri-colored wings - grey flight feathers, black tips, and brown coverts. Females are larger (52-60 cm, 500-100...
Found primarily in extensive wetlands, fens, marshes, and dense reed beds, often adjacent to agricultural land or open water. Typically occurs at low elevations, favoring areas with tall, dense vegetation for nesting and roosting.
Primarily consumes small mammals (e.g., voles, mice), birds (especially ducklings, small passerines, and their eggs), amphibians (frogs), fish, and large insects. Forages by quartering low over marshland, dropping suddenly onto unsuspecting prey.
Western Marsh Harriers are diurnal, spending their days hunting over their marshy territories and forming communal roosts in dense reed beds during winter. Their characteristic hunting technique involves a low, quartering flight with wings held in a shallow 'V' shape, systematically searching for...
The Western Marsh Harrier boasts a wide distribution across the Palearctic realm. Its primary breeding range extends throughout temperate Europe, from the British Isles and Western Europe eastward across Russia, Central Asia, to parts of Mongolia and northwestern China, with isolated populations ...
Least Concern
- The scientific name *Circus aeruginosus* refers to its rusty or rust-colored plumage, particularly evident in the rufous tones of the male. - Males are often polygynous, meaning they may mate with up to three females simultaneously, each with a separate nest, and are responsible for feeding all...