California Rattlesnakes by Don Becker (iOS & Android App) George Mayfield Apps, Herp App, Reptiles & Amphibians, Reptiles & Amphibians: North America July 8, 2016
NC, SC: American Birding Association Field Guide to Birds of the Carolinas (American Birding Association State Field) George Mayfield North Carolina, South Carolina December 6, 2016
The Sibley eGuide to the Birds of North America (iOS & Android App) George Mayfield Apps, Birding App July 13, 2016
A Guide to the Birds of Colombia George Mayfield Birds, Colombia, Other Fauna, South America September 6, 2016
PA: American Birding Association Field Guide to Birds of Pennsylvania (American Birding Association State Field) George Mayfield Pennsylvania December 6, 2016
Peterson Field Guide to Mammals of North America: Fourth Edition (Peterson Field Guides) George Mayfield Mammals February 24, 2017
Birds of the Horn of Africa: Ethiopia, Eritrea, Djibouti, Somalia, and Socotra (Princeton Field Guides) George Mayfield Africa, Birds November 30, 2016
Where to See Birds in Victoria George Mayfield Australia, Australia, New Zealand, South Pacific April 5, 2016
Birds of Europe (2nd Edition) Drew Armenia, Azerbaijan, England, Europe, France, Germany, Ireland, Israel, Italy, Jordan, Lebanon, Palestine, Scotland, Syria, Turkey, Wales March 30, 2016
A Birdwatchers’ Guide to Cuba, Jamaica, Hispaniola, Puerto Rico and the Caymans (Prion Birdwatchers’ Guide Series) George Mayfield Cuba February 24, 2017
Field Guide to the Birds of Australia (Helm Field Guides) George Mayfield Australia, New Zealand, South Pacific March 30, 2016
