Nature photos throughout site courtesy of Photo Forum photographers (Barbara Southworth, Kevin Duncan, Gaetana Ebbole, Susan Saudek, Leslie Kiefer), and Unsplash stock photo from Dietra Alyssa Semple. Carolina chickadee and Wood thrush photos by Nicholas Clements. Image of Rachel Carson near stream: Alfred Eisenstaedt/Time Life Pictures, via Getty Images. Illustrations of fish and bird: Lois and Louis Darling, Silent Spring. Video from The Silent Watcher. Image in pop-up courtesy of Ziger|Snead Architects.