CASEY MCFARLAND trains biologists, research teams, ecotourism guides, and the general public to read and interpret the tracks, signs, and trails of wildlife. A Senior Tracker and Senior International Evaluator for CyberTracker Conservation, he works around the globe to develop and support wildlife tracking skill and ecological knowledge. A skilled educator and all-around outdoorsman, Casey provides Track & Sign and Trailing Evaluations--as well as a variety of backcountry expeditions and wildlife courses. He is a coauthor of the revision of Mammal Tracks and Sign: A Guide to North American Species and Bird Feathers: A Guide to North American Species. He lives in Fort Collins, Colorado. MATTHEW MONJELLO is a naturalist, birder, and Registered Maine Guide. His extensive experience in the outdoors, as both an educator and working on various wildlife-related projects, has enabled him to share his love for the natural world with a variety of organizations and state agencies. As an educator and guide, Matt's focus is to further strengthen the relationship between people and nature through birding, wilderness trips, wildlife tracking, and naturalist studies. He lives in Hope, Maine. DAVID MOSKOWITZ works as a conservation photographer, wildlife biologist, and educator. He is the photographer and author of numerous other books and articles on conservation, wildlife tracking, and natural history including Caribou Rainforest, Wildlife of the Pacific Northwest and Wolves in the Land of Salmon. David is certified as a Track and Sign Specialist, Trailing Specialist, and Senior Tracker through Cybertracker Conservation and is an Evaluator for this rigorous international professional certification program for wildlife tracking. Learn more about his work at davidmoskowitz.net. He lives in Winthrop, Washington.