The Swamp Harrier is largely dark brown, becoming lighter with age, and has a distinct white rump. It hunts by flying slowly, low to the ground, on upswept wings. The body length is 50 to 60 cm , and the wingspan is 120 to 145 cm. The recorded weights of adults range from 580 to 1100 g, and females are significantly larger than the males.
The Pacific Marsh Harrier is classified as Least Concern. Does not qualify for a more at risk category. Widespread and abundant taxa are included in this category.
Pacific Marsh Harrier (Swamp Harrier) is treated as a race of Western Marsh-Harrier C. aeroginosus by some authors Habitat - Open country, crops, paddyfields and swamps. Behaviour - The diet includes ground birds and waterbirds, rabbits and other small mammals, reptiles, frogs and fish and carrion. It nests on the ground, often in swamps, on a mound in reeds or other dense vegetation. More