Kiwis are small, flightless birds with a round, plump body and a relatively long beak. They have soft, fluffy feathers that are usually mottled brown or gray in color, which helps them blend in with their surroundings. Kiwis have small, vestigial wings that are hidden beneath their feathers, and they have strong, sturdy legs that are adapted for running and foraging on the forest floor. They also have large, expressive eyes and a distinctive, high-pitched call.