(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
Raptors of Mexico and Central America George Mayfield Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Mexico & Central America, Nicaragua, Panama, Raptors April 11, 2017
AZ: American Birding Association Field Guide to Birds of AZ: Arizona (American Birding Association State Field) George Mayfield Arizona December 6, 2000
The Sibley eGuide to the Birds of North America (iOS & Android App) George Mayfield Apps, Birding App July 13, 2016
Birds of Costa Rica: A Field Guide (Corrie Herring Hooks) George Mayfield Costa Rica, Mexico & Central America March 3, 2016
Dragonflies and Damselflies of the East (Princeton Field Guides) George Mayfield Dragonflies & Damselflies: North America, Insects April 7, 2016
Birds of Mexico and Central America: (Princeton Illustrated Checklists) George Mayfield Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Mexico & Central America, Nicaragua, Panama February 10, 2017
California Reptiles by Thomas Benner (iOS App) George Mayfield Apps, Herp App, Reptiles & Amphibians, Reptiles & Amphibians: North America July 8, 2016
A Field Guide to the Birds of the West Indies (Peterson Field Guides) George Mayfield Caribbean, Cuba February 24, 2017
