Start with high-confidence ecotourism books, then narrow by subgenre or adjacent topics.
The Sibley Field Guide to Birds of Eastern North America
David Allen Sibley
The Slow Traveller
Jo Tinsley, Aidan Meighan
National Geographic Field Guide to the Birds of the United States and Canada—east, 2nd Edition
Ted Floyd
The Battle for North Carolina's Coast
Stanley R Riggs, Dorothea Von Der Porten Ames
The New Tourist
Paige McClanahan
