Aechmophorus occidentalis is commonly found from Canada through California, and sometimes in Mexico. It usually occurs in the great plains and western states, but occasionally can be found in the eastern half of the United States.
Biogeographic Regions: nearctic (Native )Rights Holder
: The Regents of the University of Michigan and its licensorsBibliographic Citation
: Pease, M. 2001. "Aechmophorus occidentalis" (On-line), Animal Diversity Web. Accessed April 27, 2013 at Citation Link