Generous review by Donald Kroodsma and assistance from Alan Poole, Keith Russell, and Frank Gill helped in the development of this account. J. Michael Meyers, Elizabeth G. Springborn, Lisa K. Duncan, Brian D. Peer, William Post, and Calvin L. Cink shared their experience with Painted Buntings. John Sauer and Bruce Peterjohn provided Breeding Bird Survey data and counsel for its interpretation. Sandra L. L. Gaunt and staff of the Borror Laboratory of Bioacoustics, Ohio State University, provided spectrograms. Unpublished Breeding Bird Atlas data for Texas were provided by Karen Benson, Texas A&M University.
Egg measurements were taken from specimens in the following institutions: American Museum of Natural History, Carnegie Museum, Field Museum (Chicago), San Bernardino County (CA) Museum, U.S. National Museum, University of Washington, and Western Foundation of Vertebrate Zoology; clutch-size information came from the previous institutions, as well as from the following individuals, programs, and institutions: Douglas B. McNair, David F. Parmelee, Barton M. Snyder, Cornell Nest Records Program, Adams State College (Alamosa, CO), Alberta Provincial Museum, Baylor University, Boston Science Museum, Brigham Young University, Buffalo (NY) Museum of Science, California Academy of Science, Chicago Academy of Science, Charleston (SC) Museum, Clemson University, Cleveland (OH) Museum of Natural History, Cornell University, Delaware Museum of Natural History, Denver Museum of Natural History, Illinois State Museum (Springfield), Museum of Comparative Zoology (Harvard University), Miami (OH) University, National Museum of Natural Science (Canada), New York State Museum, Oxley Nature Center (Tulsa, OK), Putnam Museum (Davenport, IA), Royal Ontario Museum, San Bernardino County (CA) Museum, Santa Barbara (CA) Museum of Natural History, State Museum of Pennsylvania, University of Arkansas, Museum of Vertebrate Zoology (Berkeley), University of British Columbia, University of Florida, University of Michigan, University of Minnesota, University of Nevada, University of Illinois, University of Kansas, University of Nebraska, University of Wisconsin–Green Bay, University of Oklahoma, University of Puget Sound (WA), Welder Wildlife Refuge (TX), and Peabody Museum (Yale University).