Join volunteer naturalists for a hike in the foothills to look for signs of wildlife activity, including tracks, scat, feathers, fur, and browse marks on trees. Explore the foothills life zone and the animals and plants that call it home. We will learn about the many ways that wildlife survives winter in the foothills. 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.