Geographical distribution of American black duck.    Breeding  Year-round  Nonbreeding
Longcore, J. R., D. G. McAuley, G. R. Hepp, and J. M. Rhymer (2000). American Black Duck (Anas rubripes), version 2.0. In The Birds of North America (A. F. Poole and F. B. Gill, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi-org.acces.bibl.ulaval.ca/10.2173/bna.481
Cephas