Swamp harrier, Australasian marsh harrier, Australasian harrier, swamp-hawk (Circus approximans)

Circus approximans is a species in the Circus genus. It is commonly known as Swamp harrier, Australasian marsh harrier, Australasian harrier, swamp-hawk This name is unplaced name for the species in the family Accipitridae subfamily Circinae, . This species is found in New Zealand, Australia, Pacific islands.