Join us for a fun slideshow program and learn to recognize birds of prey, including hawks, eagles, and falcons, that fly in the skies above Boulder County. Volunteers will share tips to help you distinguish among raptors by identifying field marks, behavior, location, and time of year. Registration for most programs begins on the 20th of the month before the event. Registration required. Register Registration is required through Discover Boulder County, Parks & Open Space’s volunteer and event registration system. If you’re new to the system, you'll need to create an account. But it’s easy and we only use your contact information to communicate about events you register for. We will never sell or give your information to a third party.