The Chestnut Teal (Anas castanea) is a small duck. The male (shown here) has brown back, rich chestnut-coloured chest and sides with dark tail and white patch on the rear (the white patch is in front of the tail at the "water line" when it swims). The head is dark green. Females are brown with scalloped pattern. The bill is grey in both sexes. The female Chestnut Teal is very similar to the Grey Teal, but is darker.
This post is part of the Saturday Critters meme.