Recommended Citation

Winkler, D. W., S. M. Billerman, and I.J. Lovette (2020). Longspurs and Snow Buntings (Calcariidae), version 1.0. In Birds of the World (S. M. Billerman, B. K. Keeney, P. G. Rodewald, and T. S. Schulenberg, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.calcar1.01