Upcoming Events
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.
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.
Lafayette Birds! First Sunday Bird Watching
Discover the fun of observing birds and other natural wonders with knowledgeable Lafayette bird watchers.
Photo credit: Bufflehead 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: Red-tailed Hawk 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: 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.
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.
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.
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.
Birding the White Rocks Trail Area
Teller Farm North Trailhead (map)
NOTE: This field trip was rescheduled from August 9.
Observe a variety of birds along the White Rocks trail with local birder Daniel Carrier.
Photo credit: Blue Grosbeak by Kevin Smith.
Walden Ponds with Carl Starace
Cottonwood Marsh Trailhead at Walden Ponds Wildlife Habitat (map)
Bird Walden Ponds Wildlife Habitat with local birder Carl Starace.
Photo credit: Great Blue Heron 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: Spotted Sandpiper by Gerhard Assenmacher.
What the Duck?
Hecla Lake, Louisville (map)
Observe waterfowl, swallows and more on this easy guided walk with Kyle Kramer.
Photo credit: Cliff Swallow by Gerhard Assenmacher.
Lafayette Birds! First Sunday Bird Watching
Discover the fun of observing birds and other natural wonders with knowledgeable Lafayette bird watchers.
Photo credit: Western Grebe, by Kevin Smith.
A Geo Sapiens Walk: Exploring a new view of human beings with Martin Ogle
Explore a new view of humanity on a neighborhood walk around Treehouse Learning Preschool.
Image by Martin Ogle.
What the Duck?
Hecla Lake, Louisville (map)
Observe waterfowl, swallows and more on this easy guided walk with Kyle Kramer.
Photo credit: Mallard by Gerhard Assenmacher.
What's Abuzz? Pollination!
Davidson Mesa Trailhead (map)
McCaslin Blvd across from Harper Lake
Observe pollinating insects and wildflower displays that have returned after the Marshall Fire, with community naturalist Dave Sutherland.
Image of garden pollinator by Dave Sutherland.
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:Bullock’s Oriole by Kevin Smith.