Are you curious about the birds perching outside your window? Experts from the Audubon Society of Greater Denver will help you discover spring birdwatching and teach you to identify local bird species, like the mountain chickadee or the western meadowlark. Participants will also learn how to best use binoculars and field guides. Classes take place in great birding locations around Denver, including Barr Lake and Chatfield State Park. Sat 8 a.m.-2 p.m.