Deep Forest Canopy
Species Radar
Hawks, Eagles, and Kites

Western Marsh Harrier

Circus aeruginosus

The western marsh harrier is a large harrier, a bird of prey from temperate and subtropical western Eurasia and adjacent Africa. It is also known as the Eurasian marsh harrier. Formerly, a number of relatives were included in C. aeruginosus, which was then known as "marsh harrier". The related taxa are now generally considered to be separate species: the eastern marsh harrier, the Papuan harrier of eastern Asia and the Wallacea, the swamp harrier of Australasia and the Madagascar marsh harrier of the western Indian Ocean islands.

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Low-Light Telephoto Systems

Identifying specific features of the Western Marsh Harrier requires high-contrast magnification. Check out the top-rated 8x42 optics.

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📘 ID Reference Card

Raptor ID Pocket Reference

Compact pocket-card format — print & fold. Covers plumage, field marks, and song mnemonics.

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