Recommended Citation

Winkler, D. W., S. M. Billerman, and I. J. Lovette (2020). Treeswifts (Hemiprocnidae), 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.hemipr1.01