Survey for raptors at Lagerman Reservoir.

Bird the ponds and surrounding habitats of Pella Crossing with Carl Starace to look for waterfowl and passerines.

Photo credit: male Mallard in flight; multiple photographers credited at the bottom of the BCAS Regional Birds photo gallery webpage.

Discover the fun of observing birds and other natural wonders with knowledgeable Lafayette bird watchers.

Photo credit: Black-billed Magpie, multiple photographers credited at the bottom of the BCAS Regional Birds photo gallery webpage.

View Jupiter's moons and Saturn's rings and sample Boulder Philharmonic's music, with community naturalist Dave Sutherland and composer John Heins.

Image of Jupiter by Dave Sutherland.

Experience mammal skulls up close with community naturalist Dave Sutherland and mammalogist Carron Meaney.

Photo of prairie dog skull by Ann Duncan..

View Jupiter's moons and Saturn's rings and sample Boulder Philharmonic's music, with community naturalist Dave Sutherland and composer John Heins.

Image of Saturn by Dave Sutherland.

Learn about plans for wildlife crossings along Highway 36 between Boulder and Lyons, from project leader and Boulder County Parks and Open Space wildlife biologist Susan Spaulding. Prior to Susan's talk, Alexander Howard will talk for ten minutes about his experience at the Hog Island birding camp, sponsored by a scholarship from BCAS.

Photo of elk crossing Highway 36 north of Boulder, courtesy of Susan Spaulding.

Sandstone Ranch Community Park and Nature Area, Sandstone Drive, Longmont (map)

Observe birds at Sandstone Ranch with local birder Carl Starace.

Photo credit: Bushtit, multiple photographers credited at the bottom of the BCAS Regional Birds photo gallery webpage.

NOTE: This trip is full, but you can join the waitlist.

Explore Golden Ponds Nature Area with birder and wildlife biologist Megan Jones Patterson.

Photo credit: White-breasted Nuthatch, multiple photographers credited at the bottom of the BCAS Regional Birds photo gallery webpage.

Bird the White Rocks Nature Preserve with Carl Starace to look for waterfowl and passerines.

Photo credit: Green-winged Teal pair, multiple photographers credited at the bottom of the BCAS Regional Birds photo gallery webpage.

Discover the fun of observing birds and other natural wonders with knowledgeable Lafayette bird watchers.

Photo credit: Spotted Sandpiper, multiple photographers credited at the bottom of the BCAS Regional Birds photo gallery webpage.

Hike to one of Boulder's historic stone quarries with community naturalist Dave Sutherland.

Photo: View from Wood's Quarry, by Dave Sutherland

Bird the ponds and surrounding habitats of Pella Crossing with Carl Starace to look for fall migrants.

We'll view the night sky through state-of-the-art telescopes and share our discoveries while munching on a variety of pizzas.

Dr. Jacob Job explores avian diversity at sites within and outside of the East Troublesome fire burn scar. Prior to Dr. Job's talk, Peyton Jackson will speak over Zoom for ten minutes about his Hog Island birding camp experience, sponsored by a scholarship from BCAS.

This program will be offered both in person and online.

Photo of East Troublesome fire area by Dr. Jacob Job.

Enjoy a variety of fun and exciting exhibits and activities celebrating migratory birds! Join BCAS and the City of Lafayette at Waneka Lake and Greenlee Wildlife Preserve for the 11th annual celebration of fall bird migration.

Photo from the 2023 event courtesy of Martin Ogle.

Explore Saturn’s rings and moons with community naturalist Dave Sutherland and his large telescope.
NOTE: This program will be offered from 9-11 PM on ONE date - September 5, 6, OR 7. Registered participants will be notified of the chosen date.

Photo: Saturn and its rings through Dave's telescope, by Dave Sutherland.

Preview the speakers for the fall 2024 programs season.

Starting in 2020, many programs were recorded and are available to view on the BCAS YouTube channel. The 2020-2021 recorded speaker series programs playlist is here, the 2021-2022 playlist is here, the 2022-2023 playlist is here, and the 2023-2024 playlist is here.

Teller Farm North Trailhead (map)

NOTE: This trip is full, but you can join the waitlist.

Explore White Rocks Nature Preserve with longtime birder Jim Guerin.

Photo credit: Snowy Egret, multiple photographers credited at the bottom of the BCAS Regional Birds photo gallery webpage.

Discover the fun of observing birds and other natural wonders with knowledgeable Lafayette bird watchers.

Photo of Lark Sparrow by Kevin Smith

Walden Ponds Wildlife Habitat (map)

Join community naturalist Dave Sutherland for amazing bird viewing accompanied by beautiful bird-themed musical selections.

Yellow Warbler photo by Kevin Smith.

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: Wild Turkey, multiple photographers credited at the bottom of the BCAS Regional Birds photo gallery webpage.

Join community naturalist Dave Sutherland and composer Jeffrey Nytch for a musical hike in Boulder’s foothills, to explore ancient stories from the rocks, accompanied by music inspired by Colorado’s rocks and geology.

Photo by Dave Sutherland.

Sawhill Ponds Trailhead (Map)

Explore the mysterious world of nocturnal animals under the full Sturgeon moon, with community naturalist Dave Sutherland.

Photo by Dave Sutherland.

Teller Farm North Trailhead (map)

Observe birds along the White Rocks trail with local birder Carl Starace.

Photo credit: Warbling Vireo, multiple photographers credited at the bottom of the BCAS Regional Birds photo gallery webpage.

Journey into Boulder’s past through stories found in the rocks, with community naturalist Dave Sutherland.

Photo of fossils by Lisa Hinderlider

Discover the fun of observing birds and other natural wonders with knowledgeable Lafayette bird watchers.

Photo credit: Male American Kestrel, multiple photographers credited at the bottom of the BCAS Regional Birds photo gallery webpage.

Explore the sky of a summer night with community naturalist Dave Sutherland and his large telescope.
NOTE: This program will be offered from 8:30-10:30 PM on ONE date - August 1, 2, OR 3. Registered participants will be notified of the chosen date.

Photo: Actual view of the Needle Galaxy NGC 4565 through Dave's telescope, by Dave Sutherland.

Sandstone Ranch Community Park and Nature Area, Sandstone Drive, Longmont (map)

Observe birds at Sandstone Ranch with local birder Carl Starace.

Photo credit: Snowy Egret, multiple photographers credited at the bottom of the BCAS Regional Birds photo gallery webpage.