 The downy chick is dark brown with yellowish buff markings.Unlike other pintails, the males are similar in appearance to the females, though larger.The ducks are 45 to 65 cm in length, the males weighing 610 to 660 g, the females 460 to 610 g. Minor differences are that the male has uniformly brownish-grey upperwing coverts and a glossy greenish-black speculum, while the female has mottled upperwing coverts and a dull brown speculum.