Geographical distribution of Baird's sparrow.     Breeding  Nonbreeding
Green, M. T., P. E. Lowther, S. L. Jones, S. K. Davis, and B. C. Dale (2002). Baird's Sparrow (Ammodramus bairdii), 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.638
Cephas