The Birds of Costa Rica: A Field Guide (Zona Tropical Publications) George Mayfield Costa Rica, Mexico & Central America March 4, 2016
Peterson Field Guide to Moths of Northeastern North America (Peterson Field Guides) George Mayfield Butterflies & Moths April 4, 2017
Mammals of North America: Second Edition (Princeton Field Guides) George Mayfield Mammals February 24, 2017
A Birdwatching Guide to North East Germany and its Baltic Coast George Mayfield Europe, Germany, Poland March 30, 2017
Petrels, Albatrosses, and Storm-Petrels of North America: A Photographic Guide George Mayfield Seabird Guides March 4, 2016
Shorebirds: An Identification Guide to the Waders of the World George Mayfield Birds, Shorebirds September 8, 2016
Field Guide to Australian Birds George Mayfield Australia, Australia, New Zealand, South Pacific March 30, 2016
Peterson Field Guide to Birds of Western North America, Fourth Edition (Peterson Field Guides George Mayfield Canada, United States, US & Canada, Western North America June 20, 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
MA: American Birding Association Field Guide to Birds of Massachusetts George Mayfield Massachussets December 6, 2016
National Geographic Field Guide to the Birds of North America, Sixth Edition George Mayfield Canada, United States, US & Canada March 3, 2016