David Sibley is an author and illustrator of the Sibley Guides and other books about birds and nature. He's been an avid birdwatcher for most of my life, with drawing and painting as a way of exploring nature. He’s also the author of _The Birds of Cape May, The Sibley Guide to Bird Life and Behavior, The Sibley Field Guide to Birds of Eastern North America, The Sibley Field Guide to Birds of Western North America, Hawks in Flight,_ and _Sibley's Birding Basics_. All together he has sold more than 1.75 million copies of his books. Sibley creates all his work from his home in Concord, Massachusetts.

**Mark Faherty** has been the Science Coordinator at Mass Audubon’s Wellfleet Bay Wildlife Sanctuary since August 2007 and has led birding trips for Mass Audubon since 2002. While his current projects involve everything from oysters and horseshoe crabs to bats and butterflies, he has studied primarily bird ecology for the last 20 years, working on research projects in Kenya, Florida, Texas, California, Arizona, Mexico, and the Pacific Northwest. He was a counter for the famous River of Raptors hawk watch in Veracruz, Mexico, and has birded extensively in Peru, Kenya, Panama, Belize, and both Eastern and Western Europe. Mark is an emcee and trip leader for multiple birding festivals and leads workshops on birding by ear, eBird, birding apps, and general bird identification. He is past president of the Cape Cod Bird Club and current member of the Massachusetts Avian Records Committee. Weekly Bird Report, Mark’s weekly essay on Cape and Islands bird life, airs each Wednesday on WCAI, the Cape and Islands NPR station. He also co-hosts Bird News, a monthly call-in show all about birds, on WCAI's The Point with Mindy Todd.