Kevin Karlson is an accomplished birder, author, professional tour leader and wildlife photographer who has published numerous articles on bird identification and natural history for an assortment of magazines and journals. A former photo editor for North American Birds, he currently writes the Birderís ID column for Wild Bird Magazine. Kevin is a co-author of The Shorebird Guide (Houghton Mifflin Co. 2006) and just completed a new book for the Roger Tory Peterson Reference series at Houghton Mifflin Co. called Birding by Impression. As the sole ornithologist for Cornellís DVD Birds of North America, Kevin prepared photos and wrote captions for over 2600 bird images. He is a regular presence at numerous Bird and Nature festivals around North America, where he gives keynote presentations and workshops on bird identification and natural history; and leads field trips to a variety of locations.