The Birds of Costa Rica: A Field Guide (Zona Tropical Publications) George Mayfield Costa Rica, Mexico & Central America March 4, 2016
Britain’s Birds: An Identification Guide to the Birds of Britain and Ireland (WILDGuides) George Mayfield Birds, England, Europe, Ireland, Scotland February 10, 2017
Petrels, Albatrosses, and Storm-Petrels of North America: A Photographic Guide George Mayfield Seabird Guides March 4, 2016
Common Dragonflies of California 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
The Field Guide to the Birds of Australia 9th Edition George Mayfield Australia, Australia, New Zealand, South Pacific March 30, 2016
Dragonflies and Damselflies of the East (Princeton Field Guides) George Mayfield Dragonflies & Damselflies: North America, Insects April 7, 2016
A Field Guide to Western Reptiles and Amphibians (Peterson Field Guides) George Mayfield Reptiles & Amphibians, Reptiles & Amphibians: North America July 8, 2016
NY: American Birding Association Field Guide to Birds of New York (American Birding Association State Field) George Mayfield New York December 6, 2016
