Circus aeruginosus (Western Marsh Harrier) is a species of birds in the family Accipitridae. It is listed in CITES Appendix II. It is associated with freshwater habitat. Western Marsh Harrier is found in the Indo-Malayan Realm, the Afrotropics, and the Palearctic. It is a diurnal vertivore. Individuals can grow to 1030 g. Reproduction is dioecious. Western Marsh Harrier has parental care (occasionally breeds cooperatively). It relies on flight to move around.
EOL has data for 35 attributes, including: