American Black Duck (Anas rubripes) [XC89663]
by Paul Driver from Kyker Bottoms Wildlife Refuge, Maryville, Tennessee, United States (flight call)
American Black Duck (Anas rubripes) [XC142767]
by Paul Driver from Saint-Aim\u00e9-des-Lacs, Charlevoix-Est, Qu\u00e9bec, Canada (alarm 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.