Roy W. McDiarmid is a Research Zoologist and Curator of Reptiles for the USGS Patuxent Wildlife Research Center at the National Museum of Natural History. Mercedes S. Foster is a Research Zoologist and Curator of Birds for the USGS Patuxent Wildlife Research Center at the National Museum of Natural History. Craig Guyer is Professor of Biological Sciences at Auburn University. J. Whitfield Gibbons is Professor of Ecology at the University of Georgia and former head of the Environmental Outreach and Education program at the Savannah River Ecology Laboratory. Neil Chernoff is a scientist at the National Health and Environmental Effects Research Laboratory of the U.S. Environmental Protection Agency.