Are you curious about butterflies, or have you ever wondered where monarchs go during their incredible migration? Join volunteer naturalists for a beginner’s guide to our colorful local butterflies. This slideshow program will explore the amazing life cycle of butterflies and cover basic information on behavior, host plants, identification tips, and more. 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.