Swamp Harrier
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| Circus approximans Peale, 1848 |
The Swamp Harrier, Circus approximans, also known as the Marsh Harrier, Australasian Harrier or Swamp-hawk, is a large, slim bird of prey in the family Accipitridae.
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[edit] Identification
Largely dark brown colouring, with a distinct white rump. Hunts by flying slowly, low to the ground, on upswept wings. Body length 50-60 cm, wingspan 120-145 cm. Recorded weights of adults range from 580-1100 g. Females are significantly larger.
[edit] Range
The Swamp Harrier is widespread through Australasia and many islands in the south-west Pacific region, including much of Australia (except the arid region), New Zealand, Vanuatu and New Caledonia.
[edit] Habitat
Wetlands and well-watered open country.
[edit] Food
Ground birds and waterbirds, rabbits and other small mammals, reptiles, frogs and fish.
[edit] Nesting
This species nests on the ground, often in swamps, on a mound in reeds or other dense vegetation. The clutch size may be from 2-7, but is usually 3-4. The incubation period is about 33 days, with chicks fledging about 45 days after hatching.
[edit] References
- BirdLife International. (2006). Species factsheet: Circus approximans. Downloaded from http://www.birdlife.org on 4/12/2006
- Marchant, S.; & Higgins, P.J. (Eds). Handbook of Australian, New Zealand and Antarctic Birds. Vol,2: Raptors to Lapwings. Oxford University Press: Melbourne. ISBN 0-19-553069-1
[edit] External links
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