American Black Duck (Anas rubripes) [XC203263]
by Andrew Spencer from Nelson Beach, Plymouth, Plymouth Co., Massachusetts, United States (call)
American Black Duck (Anas rubripes) [XC142766]
by Martin St-Michel from Saint-Aim\u00e9-des-Lacs, Charlevoix-Est, Qu\u00e9bec, Canada (alarm call, flight call)
Subspecies
Forms a superspecies with Mallard (Anas platyrhynchos), Meller's Duck (Anas melleri) and Yellow-billed Duck (Anas undulata). Sometimes considered a subspecies of Mallard (Anas platyrhynchos), with which frequently interbreeds.