CO: American Birding Association Field Guide to the Birds of Colorado George Mayfield State & Province Guides December 6, 2016
Peterson Field Guide to Birds of Northern Central America George Mayfield Belize, El Salvador, Guatemala, Honduras, Mexico & Central America November 30, 2016
Waterfowl of North America, Europe, and Asia: An Identification Guide George Mayfield Birds, Waterfowl April 5, 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
Newman’s Birds of Southern Africa: 10th Edition George Mayfield Africa, Botswana, South Africa September 6, 2016
California Rattlesnakes by Don Becker (iOS & Android App) George Mayfield Apps, Herp App, Reptiles & Amphibians, Reptiles & Amphibians: North America July 8, 2016
Peterson Field Guide to Mammals of North America: Fourth Edition (Peterson Field Guides) George Mayfield Mammals February 24, 2017
Dragonflies and Damselflies of the West (Princeton Field Guides) George Mayfield Dragonflies & Damselflies: North America, Insects April 7, 2016
Finding Australian Birds: A Field Guide to Birding Locations (Kindle Edition) George Mayfield Australia, Australia, New Zealand, South Pacific April 5, 2016
Audubon Bird Guide: North America (iOS & Android) George Mayfield Apps, Birding App February 10, 2017
Birds of the Pacific Northwest (A Timber Press Field Guide) George Mayfield Western North America June 2, 2017
Birds of the Horn of Africa: Ethiopia, Eritrea, Djibouti, Somalia, and Socotra (Princeton Field Guides) George Mayfield Africa, Birds November 30, 2016
