Geographical distribution of Lewis's woodpecker.    Breeding  Migration  Year-round  Nonbreeding
Vierling, K. T., V. A. Saab, and B. W. Tobalske (2013). Lewis's Woodpecker (Melanerpes lewis), version 2.0. In The Birds of North America (A. F. Poole, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi-org.acces.bibl.ulaval.ca/10.2173/bna.284
Cephas