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.

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.

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

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

Photo credit: Spotted Sandpiper by Gerhard Assenmacher.

Hecla Lake, Louisville (map)

Observe waterfowl, swallows and more on this easy guided walk with Kyle Kramer.

Photo credit: Cliff Swallow by Gerhard Assenmacher.

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

Photo credit: Western Grebe, by Kevin Smith.

Explore a new view of humanity on a neighborhood walk around Treehouse Learning Preschool.

Image by Martin Ogle.

Hecla Lake, Louisville (map)

Observe waterfowl, swallows and more on this easy guided walk with Kyle Kramer.

Photo credit: Mallard by Gerhard Assenmacher.

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.

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.

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

Look for colorful returning spring migrants in Boulder’s foothills with Megan Jones Patterson.

Photo credit: Broad-tailed Hummingbird by Kevin Smith.

Observe birds in the foothills at Heil Valley Ranch with local birder Carl Starace.

Photo credit: Western Flycatcher by Kevin Smith.

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

Photo credit: Tree Swallow by Gerhard Assenmacher..

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

Observe birds at Sandstone Ranch with local birder Carl Starace.

Photo credit: Blue Grosbeak by Kevin Smith.

Learn about the value of Prairie Rattlesnakes and other reptiles and amphibians in our ecosystems, and meet a few live representatives!

NOTE: This program will be offered in-person only. Attendance will be limited and registration will be required.

Photo credit: Prairie Rattlesnake in defensive posture on road, by Cameron Young.

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

Look for colorful returning spring migrants in Boulder’s foothills with community naturalist Dave Sutherland.

Photo credit: Broad-tailed Hummingbird by Kevin Smith.

The WMBD 2025 theme is “Shared Spaces: Creating Bird-Friendly Cities and Communities” highlighting the need for a healthy coexistence between humans and birds.

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: Gray Catbird by Kevin Smith.

Explore how new scientific understandings of Earth as a living system intersect with cultural understandings, ancient and new, in this presentation by naturalist, Earth scientist and storyteller Martin Ogle.

Image by Martin Ogle.

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

Photo credit: Lark Sparrow by Kevin Smith.

Observe birds at Pella Crossing with local birder Carl Starace.

Photo of Osprey by Kevin Smith.

Hecla Lake, Louisville (map)

Observe waterfowl and other birds during spring migration on this easy guided walk with Kyle Kramer.

Photo credit: Mallard by Gerhard Assenmacher.

Attend the student-led 2025 Boulder Valley School District Climate Resilience Summit - see inspirational talks, table displays, an energy bike demonstration, and participate in guided discussions.

Image by Martin Ogle.

Join new BCAS field trip leader Daniel Carrier for a relaxed morning of birding at Walden Ponds Wildlife Habitat.

Photo credit: Tree Swallow by Gerhard Assenmacher.

Chris Pague will share conservation challenges and recent successes of the Southern High Plains Initiative, from the perspective of his decades of experience with ecology, natural history, conservation biology, and conservation planning, including 30+ years with The Nature Conservancy.

Photo Credit: Chris Page at Maverick Ranch in SE Colorado Canyonlands/Grasslands, by Kate Shorrock.

Teller Farm North Trailhead (map)

Observe a variety of returning migrants and resident birds along the White Rocks trail with local birder Carl Starace.

Photo credit: Northern House Wren by Kevin Smith.

NOTE: This trip is full but you can join the waitlist.
Join trip leader Jim Fischer to observe spring birds at Waneka Lake Park, followed by brews and appetizers at Liquid Mechanics Brewing Co.

Photo credit: Green-winged Teal pair, by Kevin Smith.

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

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

Hecla Lake, Louisville (map)

Observe waterfowl at the start of spring migration on this easy guided walk with Kyle Kramer.

Photo credit: Mallard by Gerhard Assenmacher.

Explore America’s nightjars with cultural sociologist Jared Del Rosso.

Eastern Whip-poor-will photo by Tom Murray, https://flic.kr/p/WqXsYi, CC BY-NC 2.0, Some Rights Reserved