Eaton's pintail

Eaton's pintail (Anas eatoni) is a dabbling duck of the genus Anas. It is also known as the southern pintail. The species is restricted to the island groups of Kerguelen and Crozet in the southern Indian Ocean. It resembles a small female northern pintail. It was named after the English explorer and naturalist Alfred Edwin Eaton. It is threatened by introduced species, particularly feral cats, which prey on it, particularly during the post-breeding molt, when it is unable to fly.

The Eaton's pintail is a small duck, 35-45 cm in length, with a 65-70 cm wingspan and weighing 430-502 g in males and 400-500 g in females. Its adult male and female plumage is similarly brownish overall with cinnamon underparts, though the two sexes can be separated by the color of the speculum (green in males and brown in females) and the longer central retrices in males. Juveniles are similar to adults in plumage, but more streaked below.