The term 'Swamp Hen' is a common name for the Pukeko, a large, blue-purple bird native to New Zealand. It is a member of the rail family and is found in wetlands, swamps, and other wetland habitats. The Pukeko is a large, ground-dwelling bird with a long, red beak and long legs. It is an omnivore, feeding on insects, small mammals, and plants. It is also known for its loud, distinctive call.