The Mandarin duck is 17 to 20 inches in length and weighs 1 to 1.3 pounds. This perching duck is certainly one of the most spectacular of the ducks, with elaborate and intricately designed plumage, resembling the American wood duck. The male has a long metallic green crest with a broad white central stripe on the side of the head and crest. In addition, there are orange "whiskers," a red bill, brown eyes, and a pair of very large orange "sail" feathers. Females have gray heads with a white eye-ring, a buff and brown mottled breast, white under-parts, and a greenish-brown upper part coloration. Instead of webbing, these birds have sharp claws, which enable them to perch easily in trees and nest in tree holes.