Sources and Acknowledgments
Gregory, Richard D. and van Strien, A. 2010. “Wild bird indicators: Using composite population trends of birds as measures of environmental health.” Ornithological Science 9(1), 3–22. https://doi. org/10.2326/osj.9.3.
Meehan, T.D., LeBaron, G.S., Dale, K., Krump, A., Michel, N.L. and Wilsey, C.B. 2020. Abundance trends of birds wintering in the USA and Canada, from Audubon Christmas Bird Counts, 1966–2019, version 3.0. National Audubon Society, New York, NY, USA.
Partners in Flight. 2020 Avian Conservation Assessment Database, version 2020. Available at http://pif.birdconservancy.org.
Rosenberg, K.V., A.M. Dokter, P.J. Blancher, J.R. Sauer, A.C. Smith, P.A. Smith, J.C. Stanton, A. Panjabi, L. Helft, M. Parr, and P.P. Mara. 2019. Decline of the North American Avifauna. Science 10.1126/ science.aaw1313.
Sauer, J.R., Link, W.A., and Hines, J.E. 2020. The North American Breeding Bird Survey, analysis results 1966–2019: U.S. Geological Survey data release, https://doi.org/10.5066/P96A7675.
Sauer, J. R. and W. A. Link. 2011. Analysis of the North American Breeding Bird Survey using hierarchical models. The Auk 128: 87–98.
Seamans, M.E., and R.D. Rau. 2021. American Woodcock population status, 2021. U.S. Fish and Wildlife Service, Laurel, Maryland.
Smith, A., and P. A. Smith. 2022. Analysis of population indices from International Shorebird Surveys, 1980–2019. Unpublished Analysis, 22 February 2022.
U.S. Fish and Wildlife Service. 2021. Waterfowl population status, 2021. U.S. Department of the Interior, Washington, D.C. USA.
This report was published by the North American Bird Conservation Initiative (NABCI), a forum of government agencies, private organizations, and bird initiatives.
Michael G. Brasher, Amanda D. Rodewald, Kenneth V. Rosenberg (co-chairs); Steven Albert, John D. Alexander, Scott Anderson, Kathi Borgmann, Greg Butcher, Miyoko Chu, Jennifer Cipolletti, Todd Fearer, Robert P. Ford, Thomas Gardali, Scott Johnston, Peter P. Marra, Susana Mateos, John R. Sauer (lead analyst), Caleb Spiegel.
Scott Anderson, William Bevil, Kathi Borgmann, Justine Bowe, John Bowman, Jennifer Cipolletti, Miyoko Chu, Catherine Combs, Christopher Deets, Valerie Fellows, Nicolas Gonzales, Kirstin Hill, Steve Holmer, Tykee James, Pat Leonard, Irene Liu, Elva Manquera, Susana Mateos, Corina Newsome, Emily Osborne, Kenneth V. Rosenberg, Jordan Rutter, Erik Schneider, Daniel Sheire, Parker Williams.
Editor: Gus Axelson; Designer: Jillian Ditner; Production Support: Miyoko Chu, Marc Devokaitis, Kathi Borgmann; Web Editor: Hugh Powell. Essayist: J. Drew Lanham.
We are grateful to the following funders for their support of data-driven science through eBird: National Science Foundation, Wolf Creek Charitable Foundation, Leon Levy Foundation, NASA, Institute for Computational Sustainability, PSC, XSEDE. We thank the many contributors, scientists, photographers, and community members whose work and voices are featured in this report.
North American Bird Conservation Initiative. 2022. The State of the Birds, United States of America, 2022. StateoftheBirds.org