Birds of Costa Rica: A Field Guide (Corrie Herring Hooks) George Mayfield Costa Rica, Mexico & Central America March 3, 2016
The Birds of Costa Rica: A Field Guide (Zona Tropical Publications) George Mayfield Costa Rica, Mexico & Central America March 4, 2016
National Audubon Society Field Guide to North American Mammals (National Audubon Society Field Guides (Hardcover)) George Mayfield Mammals February 24, 2017
Waterfowl of North America, Europe, and Asia: An Identification Guide George Mayfield Birds, Waterfowl April 5, 2016
NY: American Birding Association Field Guide to Birds of New York (American Birding Association State Field) George Mayfield New York December 6, 2016
Larkwire Birdsong Master Birder: Land Birds of North America (iOS App) George Mayfield Apps, Birding App February 23, 2017
Birds of Madagascar and the Indian Ocean Islands (Helm Field Guides) George Mayfield Africa, Madagascar February 14, 2017
Birds of Europe (2nd Edition) Drew Armenia, Azerbaijan, England, Europe, France, Germany, Ireland, Israel, Italy, Jordan, Lebanon, Palestine, Scotland, Syria, Turkey, Wales March 30, 2016
Field Guide to Australian Birds George Mayfield Australia, Australia, New Zealand, South Pacific March 30, 2016
Common Dragonflies of California George Mayfield Dragonflies & Damselflies: North America, Insects April 7, 2016
NM: Birding Hot Spots of Santa Fe, Taos, and Northern New Mexico George Mayfield New Mexico April 4, 2017
Birds of Prey: Hawks, Eagles, Falcons, and Vultures of North America George Mayfield Raptors June 2, 2017