Southern California Reptiles and Amphibians by Donald Becker (iOS & Android App) George Mayfield Apps, Herp App, Reptiles & Amphibians, Reptiles & Amphibians: North America July 8, 2016
PA: American Birding Association Field Guide to Birds of Pennsylvania (American Birding Association State Field) George Mayfield Pennsylvania December 6, 2016
Sparrows of the United States and Canada: The Photographic Guide George Mayfield Songbirds March 4, 2016
Peterson Field Guide to Birds of Eastern and Central North America, 6th Edition (Peterson Field Guides) George Mayfield Eastern North America June 20, 2016
Birds of Mexico and Central America George Mayfield Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Mexico & Central America, Nicaragua, Panama April 11, 2017
Field Guide to Australian Birds George Mayfield Australia, Australia, New Zealand, South Pacific March 30, 2016
Birds of the Indonesian Archipelago: Greater Sundas and Wallacea George Mayfield Bali, Birds, Borneo, Java December 13, 2016
(Black and White) Birds of the West Indies: A Guide to the species of birds that inhabit the Greater Antilles, Lesser Antilles and Bahama Islands George Mayfield Caribbean, Cuba February 24, 2017
Shorebirds: An Identification Guide to the Waders of the World George Mayfield Birds, Shorebirds September 8, 2016
