R. Terry Chesserhttps://orcid.org/0000-0003-4389-7092,^1,2,3,* Shawn M. Billermanhttps://orcid.org/0000-0002-8160-0897,⁴ Kevin J. Burnshttps://orcid.org/0000-0003-3143-8681,⁵ Carla Cicerohttps://orcid.org/0000-0002-6282-2339,⁶ Jon L. Dunnhttps://orcid.org/0000-0002-0218-1613,⁷ Blanca E. Hernández-Bañoshttps://orcid.org/0000-0002-6222-4187,⁸ Andrew W. Kratter,⁹ Irby J. Lovettehttps://orcid.org/0000-0003-0268-4875,⁴ Nicholas A. Masonhttps://orcid.org/0000-0002-5266-463X,¹⁰ Pamela C. Rasmussen,¹¹ J. V. Remsen Jr,¹⁰ Douglas F. Stotzhttps://orcid.org/0000-0003-0025-0504,¹² Kevin Winkerhttps://orcid.org/0000-0002-8985-8104<sup>13

1</sup>U.S. Geological Survey, Eastern Ecological Science Center, Laurel, Maryland, USA
²National Museum of Natural History, MRC-116, Smithsonian Institution, Washington, D.C., USA
³Authors are members of the Committee on Classification and Nomenclature—North and Middle America, of the American Ornithological Society (formerly American Ornithologists' Union), listed alphabetically after the Chairman.
⁴Cornell Laboratory of Ornithology, Ithaca, New York, USA
⁵Department of Biology, San Diego State University, San Diego, California, USA
⁶Museum of Vertebrate Zoology, University of California, Berkeley, California, USA
⁷24 Idaho Street, Bishop, California, USA
⁸Departamento de Biología Evolutiva, Facultad de Ciencias, Museo de Zoología, Universidad Nacional Autónoma de México, Ciudad de México, México
⁹Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
¹⁰Museum of Natural Science and Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, USA
¹¹Michigan State University Museum and Department of Integrative Biology, East Lansing, Michigan, USA
¹²Science & Education, Field Museum of Natural History, Chicago, Illinois, USA
¹³University of Alaska Museum, Fairbanks, Alaska, USA.

^*Corresponding author: chessert@si.edu