Upcoming Events
Walden Ponds with Carl Starace
Cottonwood Marsh Trailhead at Walden Ponds Wildlife Habitat (map)
Take a bird walk at Walden Ponds Wildlife Habitat with local birder Carl Starace.
Photo credit: Great Horned Owl by Kevin Smith
Teen Naturalists: Winter Duck Extravaganza
On this trip, we will observe and photograph wild ducks and other waterbirds while we learn about duck morphology to help with identification and duck behavior. Thumbnail photo by Kevin Smith.
Boulder Birds & Brew: Beautiful Sawhill Ponds and Wild Provisions Beer Project
Sawhill Ponds
NOTE: This trip is full, but you can join the waitlist.
Explore Sawhill Ponds with birder Jim Fischer, followed by beers at Wild Provisions Beer Project.
Photo credit: Bald Eagle by Kevin Smith.
Intersecting Birds, Science, and Art
What do art, science, and eBird sightings all have in common? Find out in this intriguing talk by Dr. Johanna Beam, former BCAS Teen Naturalist.
Please join us for social time with light refreshments starting at 6:30!
NOTE: This program will also be offered on Zoom.
Drawing of Greater Roadrunner by Johanna Beam.
Lafayette Birds! First Sunday Bird Watching
Discover the fun of observing birds and other natural wonders with knowledgeable Lafayette bird watchers.
Photo credit: Dark-eyed Junco, multiple photographers credited at the bottom of the BCAS Regional Birds photo gallery webpage.
Deadline: Hog Island Audubon Camp Scholarship Application Due
Boulder County Audubon Society is offering two full scholarships plus airfare for Colorado teens aged 15-17 to attend the Coastal Maine Bird Studies for Teens at Hog Island Audubon Camp in Maine, June 14-19, 2026.
Thumbnail image by Claire VanTol
Teen Naturalists: Behind-the-Scenes Tour Raptor Rehabilitation Tour at Rocky Mountain Raptor Program
Trip Leader Courtney Rella is a volunteer with Rocky Mountain Raptor Program and will lead us through what it takes to rehabilitate raptors and why it is important.
Pella Crossing with Carl Starace
Observe birds at Pella Crossing with local birder Carl Starace.
Photo credit: Northern Harrier by Kevin Smith.
Teen Naturalists: Behind-the-Scenes at Denver Museum of Nature and Science in the Vertebrate Collection
This Tuesday is a BVSD In-Service Day, so no classes for BVSD students. Take a behind-the-scenes tour of the Museum's Vertebrate Zoology Collection - normally off limits to museum visitors!
Citizen Ruth: Environmental Warrior
Enjoy a heartwarming documentary about Ruth Wright, extraordinary environmental activist who helped achieve lasting environmental and community changes in Boulder County and beyond. The film will be followed by conversation with the filmmaker and friends.
Please join us for social time with light refreshments starting at 6:30.
NOTE: This program will be offered in-person only.
Sandstone Ranch with Carl Starace
Sandstone Ranch Community Park and Nature Area, Sandstone Drive, Longmont (map)
Observe birds at Sandstone Ranch with local birder Carl Starace.
Photo credit: American Crow by Kevin Smith.
Lafayette Birds! First Sunday Bird Watching
Discover the fun of observing birds and other natural wonders with knowledgeable Lafayette bird watchers.
Photo credit: Green-winged Teal pair by Kevin Smith.
Old St. Vrain Road with Carl Starace
Picture Rock Trailhead, Heil Valley Ranch, Red Gulch Road, Lyons, CO (map)
Observe early summer birds along Old St. Vrain Road with local birder Carl Starace.
Photo credit: Townsend’s Solitaire, multiple photographers credited at the bottom of the BCAS Regional Birds photo gallery webpage.
Spring 2026 Speaker Series Preview
Preview the speakers for the spring 2026 programs season.
Starting in 2020, many programs were recorded and are available to view on the BCAS YouTube channel. The channel includes playlists for each fall/spring program series.
Pella Crossing with Carl Starace
Observe birds at Pella Crossing with local birder Carl Starace.
Photo credit: Common Goldeneye by Kevin Smith.
Teen Naturalists: Meet-n-Greet Flamingos at Denver Zoo Conservation Alliance
Meet-and-Greet with flamingos, behind-the-scenes at the Bird Propagation Center, and docent-led tour!
Lafayette Birds! First Sunday Bird Watching
Discover the fun of observing birds and other natural wonders with knowledgeable Lafayette bird watchers.
Photo credit: White-crowned Sparrow by Kevin Smith.
White Rocks Trail with Carl Starace
Teller Farm North Trailhead (map)
Observe a variety of birds along the White Rocks trail with local birder Carl Starace.
Photo credit: Northern Shrike by Matthew Studebaker.
Boulder Christmas Bird Count
Participate in the Christmas Bird Count, at various locations in the city of Boulder and surrounding areas..
NOTE: Actual field times will vary by area/leader.
Photo courtesy of Camilla Cerea/Audubon.
Connecting Youth to Business and ALL Business to the Environment
Discover how every career can help shape a sustainable future! Join Martin Ogle for a welcome reception at 6:30 PM and the program from 7:00-8:30 PM.
Image by Martin Ogle.
Lafayette Birds! First Sunday Bird Watching
Discover the fun of observing birds and other natural wonders with knowledgeable Lafayette bird watchers.
Photo credit: Hooded Merganser pair by Kevin Smith.
Sandstone Ranch with Carl Starace
Sandstone Ranch Community Park and Nature Area, Sandstone Drive, Longmont (map)
Observe birds at Sandstone Ranch with local birder Carl Starace.
Photo credit: Wilson’s Snipe by Kevin Smith.
Solstice Moon: Moon Science, Moon Stories
Sawhill Ponds Trailhead (map)
Explore nature at night by the full moon with community naturalist Dave Sutherland.
Photo credit: Full moon by Dave Sutherland.
Star Stories and Deep Sky Wonders
Joder Ranch north of Boulder. Directions supplied when you register.
Enjoy amazing views of planets, a supernova remnant, nearby galaxies and more with community naturalist Dave Sutherland.
NOTE: The program will be offered once, on the night with the best weather forecast.
Image of Saturn from the Hubble Telescope.
Old St. Vrain Road with Carl Starace
Picture Rock Trailhead, Heil Valley Ranch, Red Gulch Road, Lyons, CO (map)
Observe early summer birds along Old St. Vrain Road with local birder Carl Starace.
Photo credit: Townsend’s Solitaire, multiple photographers credited at the bottom of the BCAS Regional Birds photo gallery webpage.
Standley Lake South Side
Look for arriving winter waterbirds, plus songbirds and raptors in a variety of habitats, with birder Peter Ruprecht.
Photo credit: Male Northern Pintail by Kevin Smith.
The Secret Lives of North American Woodpeckers
Explore the fascinating lives of North American woodpeckers with award-winning author and photographer Paul Bannick.
This special program will be offered in-person only and is a Ticketed Event! See full description for details.
This is the BCAS November program. We will not have another program on the fourth Tuesday of this month - the next program will be in January.
Photo of Acorn Woodpecker by Paul Bannick.
Lafayette Birds! First Sunday Bird Watching
Discover the fun of observing birds and other natural wonders with knowledgeable Lafayette bird watchers.
Photo credit: Belted Kingfisher by Kevin Smith.
Pella Crossing with Carl Starace
Observe birds at Pella Crossing with local birder Carl Starace.
Photo of American Wigeon by Kevin Smith.
Skullduggery!
Experience mammal skulls up close with community naturalist Dave Sutherland.
Photo of skulls by Dave Sutherland.
Birds & Energy - Understanding our human energy challenges in the context of life
Come as early as 5:45 for energy bike demos and information tables. The formal program starts at 6:30.
This engaging program explores how energy shapes our daily lives, the role we play in developing sustainable energy solutions, and the policies influencing our communities and environment.
Image by Martin Ogle.
Microbes and Wildlife in a Rapidly Changing World: From Colorado Boreal Toads to African Grey Parrots
How can microbes help wildlife conservation? Join CU Professor Valerie McKenzie to learn about relationships between microbes and wildlife, and how her research is exploring use of microbes to help declining boreal toad populations and fight against wildlife trafficking.
Photo Credit: Juvenile Boreal Toads on a clump of pondweed, by Valerie McKenzie
Birdability Week 2025
Offering virtual events, workshops, and discussions, Birdability Week ensures that birding can be enjoyed by anyone!
Crane Hollow Road with Carl Starace
Observe birds at Crane Hollow Road with local birder Carl Starace.
Photo of White-crowned Sparrow by Kevin Smith.
Ribbons of Life: The Music of Creeks and Rivers
Walk along a beautiful creek and enjoy water music with community naturalist Dave Sutherland.
Photo of Boulder Creek by Dave Sutherland.
Lafayette Birds! First Sunday Bird Watching
Discover the fun of observing birds and other natural wonders with knowledgeable Lafayette bird watchers.
Photo credit: Black-capped Chickadee by Kevin Smith.
Tallgrass Colors
Explore a tallgrass prairie stand and enjoy fall wildflowers, grasses, and pollinators with community naturalist Dave Sutherland. Meeting location and map will be provided to registered participants.
Photo: Fall grassland colors by Dave Sutherland.
White Rocks Trail/Teller Farm with Carl Starace
Teller Farm North Trailhead (map)
Observe a variety of birds and habitats along the trails at White Rocks and Teller Farm with local birder Carl Starace.
Photo credit: Wilson’s Warbler by Matthew Studebaker.
Boulder Birds and Brew: Walden Ponds and Avery Brewing Co.
NOTE: This trip is full, but you can join the waitlist.
Explore Walden Ponds for waterfowl, raptors, woodpeckers, and more with naturalist Dave Sutherland for two hours, then grab a brew at Avery, with appetizers provided by BCAS.
Photo of Wood Ducks by Gerhard Assenmacher.
Conservation of the American Kestrel in Colorado
Scott Rashid, director of the Colorado Avian Research and Rehabilitation Institute (CARRI) will discuss the fascinating biology of American Kestrels, reasons for their decline, and what CARRI is doing to help them. Prior to Scott’s talk, Silas McQueen will speak for ten minutes about his Hog Island birding camp experience, sponsored by a scholarship from BCAS.
Photo of adult male American Kestrel courtesy of Scott Rashid.
This program will be offered in person and on Zoom, but will not be recorded.
Pella Crossing with Carl Starace
Observe birds at Pella Crossing with local birder Carl Starace.
Photo of Wilson’s Warbler by Matthew Studebaker.
Walden Ponds Wildlife Habitat with Daniel Carrier
Walden Pond Trailhead (map)
Spend a fun morning at Walden Ponds Wildlife Habitat observing resident and migrating birds.
Photo credit: Snowy Egret by Kevin Smith.
Lafayette Birds! First Sunday Bird Watching
Discover the fun of observing birds and other natural wonders with knowledgeable Lafayette bird watchers.
Photo credit: Bullock’s Oriole by Kevin Smith.
Heil Valley Ranch with Carl Starace
Observe birds in the foothills at Heil Valley Ranch with local birder Carl Starace.
Photo credit: Pygmy Nuthatch by Kevin Smith.
Sandstone Ranch with Carl Starace
Sandstone Ranch Community Park and Nature Area, Sandstone Drive, Longmont (map)
Observe birds at Sandstone Ranch with local birder Carl Starace.
Photo credit: Wild Turkey by Gerhard Assenmacher.
Fall 2025 Speaker Series Preview
Preview the speakers for the fall 2025 programs season.
Starting in 2020, many programs were recorded and are available to view on the BCAS YouTube channel. The channel includes playlists for each fall/spring program series.