Welcome to the Boulder County Nature Association
Conserving ecosystems and native biodiversity in Boulder County through research, education, and advocacy since 1982.
The Boulder County Nature Association (BCNA) is an all-volunteer nonprofit dedicated to understanding, preserving, and celebrating the natural heritage of Boulder County.
Through volunteer-supported scientific research, research grants, educational programs, field trips, and conservation advocacy, we bring people together to learn about and protect the natural world. Whether you're an experienced naturalist or simply curious about the nature around you, there's something here for you.
Explore our website to learn more about BCNA, discover upcoming programs and field trips, find opportunities to get involved, and stay informed about local conservation issues.
Nature-Net
BCNA and Boulder Audubon jointly administer Nature-Net, an email discussion list sharing news, observations, questions, and information about the natural world.
Boulder County Water Development Seminar: Past, Present, and Future
Boulder County Nature Association had a seminar on Saturday, October 31st with four excellent and informative speakers. Thanks to all who attended!
KGNU Radio Monthly Nature Almanac
© Townsend's Solitair. Photo by Scott Severs
Eldorado Canyon State Park is like a city of gold this morning, as Boulder Naturalists Steve Jones, Pete Ruprecht and Ruth Carol Cushman hike the Fowler Trail, an easily walkable trail with benches along the way, and dramatic views of rock climbing cliffs that tower over 1,000 feet above a rushing creek that's just below the trail. Golden Cottonwoods shiver in the morning breeze. Majestic Douglas Fir, Ponderosa Pine and Spruce dot the cliffs, along with Juniper Trees, loaded with little blue cones that most people know as Juniper Berries. The naturalists listen for the warbly song and single call notes of a small thrush-like bird called the Townsend's Solitaire, It's also known as the "Juniper Solitaire," because it feasts on juniper berries throughout the winter and guards its favorite juniper stands with calls and songs, making it one of the few birds that sings throughout the winter. Perhaps the naturalists will also spot a bird no bigger than your thumb, with loud, tin trumpet call that fills the canyon. How about rock climbers? Or a bald eagle flying through the clouds overhead? It's all part of enjoying the golden light and golden leaves of a beautiful fall day in Eldorado Canyon State Park.
Listen to KGNU’s recorded story to learn more!
Check Out Upcoming Local Environmental Events
Boulder.Earth Climate Action Portal
People and pollinators action network: Upcoming events
Wildlands Restoration Volunteers
Gifts for the Naturalist in Your Life
The BCNA books Butterflies of the Colorado Front Range by Janet Chu and Stephen Jones and Dragonflies of the Colorado Front Range by Ann Cooper are now available from amazon.com, Apple Books, kobo.com, and barnesandnoble.com. as eBooks.
Banner photo © CC VanWie
Boulder County Nature Association
P.O. Box 493, Boulder, CO 80306