Wood ducks are 17 to 20 inches in length and weigh 1.1 to 1.9 pounds, with an average weight of 1.5 pounds. Males have a crested head, that is mostly iridescent green on the crown and sides, and a white throat stripe. The breast is maroon with white spotting. The upper wing surface is mostly iridescent with a blue and green sheen. The eyes are red, and the legs and feet yellow. The bill is brightly patterned with black, white and red. Females are mostly olive brown. The head is grayish on the sides and greenish black on the crown with a large white eye ring. The eyes are brown and the bill black.