Larkwire Birdsong Master Birder: Land Birds of North America (iOS App) George Mayfield Apps, Birding App February 23, 2017
Field Guide to the Birds of Machu Picchu and the Cusco Region, Peru: Includes a Bird Finding Guide to the Area George Mayfield Birds, Peru, South America November 30, 2016
Dragonflies and Damselflies of the East (Princeton Field Guides) George Mayfield Dragonflies & Damselflies: North America, Insects April 7, 2016
Field Guide to the Birds of Colombia George Mayfield Birds, Colombia, South America September 6, 2016
Birds of India: Pakistan, Nepal, Bangladesh, Bhutan, Sri Lanka, and the Maldives, Second Edition (Princeton Field Guides) George Mayfield Asia & Pacific, Bangladesh, India, Nepal, Pakistan, Sri Lanka February 28, 2017
FL: American Birding Association Field Guide to Birds of Florida George Mayfield Florida December 6, 2016
A Field Guide to Western Reptiles and Amphibians (Peterson Field Guides) George Mayfield Reptiles & Amphibians, Reptiles & Amphibians: North America July 8, 2016
Endemic Birds of Cuba: A Comprehensive Field Guide George Mayfield Birds, Caribbean, Cuba November 30, 2016
Birds of Kenya and Northern Tanzania George Mayfield Africa, Birds, Kenya, Tanzania September 1, 2016
CO: American Birding Association Field Guide to the Birds of Colorado George Mayfield State & Province Guides December 6, 2016
Dragonflies and Damselflies of the West (Princeton Field Guides) George Mayfield Dragonflies & Damselflies: North America, Insects April 7, 2016