The term perching ducks is used colloquially to mean any species of ducks distinguished by their readiness to perch high in trees.
Until the late 19th century, perching ducks meant the Cairinini, a tribe of ducks in the duck, goose, and swan family Anatidae, grouped together on the basis of their readiness to perch high in trees. The grouping has since been shown to be paraphyletic and their apparent similarities result from convergent evolution, with the different members more closely related to various other ducks than to each other. [1] Some authors still adhere to the former taxonomy, retaining species like muscovy duck and wood duck within Cairinini. [2] [3] [4]
Former members of the perching ducks have been suggested to be members, or close relatives, of other subfamilies. Species that were formerly in the Cairinini tribe (and their suggested current taxa) include: