When I was first learning the basic skills of birding, I read a line in Roger Tory Peterson’s famous field guide that almost made me want to give up any aspirations of becoming a good birder. He said something about skilled birders sometimes doing 95 percent of their birding by ear. I was horrified. Here I was, looking through a field guide, imagining all of the pretty birds I would see some day, and Peterson was telling me I’d learn to do 95 percent of it by sound. That’s no fun at all!