ACES Birding Activities

ACES offers a variety of birding outings to discover and explore the avian fauna of the Roaring Fork Valley led by ACES Lead Bird Guide Rebecca Weiss and visiting instructors. Whether you are a year-round resident or visit seasonally, a seasoned birder or new to birding, we invite you to come bird with us! We offer Tuesday morning birding and special field trips throughout the year at ACES three sites, and other local hotspots. Interested in birding with us consistently? Consider joining ACES’s Bird Club, available to current ACES members who want to deepen their birding knowledge and skills, directly support the ACES birding program, and enjoy special year-round birding invitations only offered to ACES Bird Club members!

Private Birding Outings

Private Birding Outings

Join a ACES birding guide for a few hours or a whole day! If you’re a beginner or an expert, these outings can be tailored to your experience level and preferences. To book, email guide@aspennature.org or call 970-925-5756. Birding outings start at $350 and reservations are based on guide availability.

Upcoming Birding Outings

May 21

Thursday, May 21

5:00am

Birding & Conversation: Birds of the Sagebrush Ecosystem

Weekly

Tuesday, May 26

7:00am

Tuesday Birding at Rock Bottom Ranch

Bi-Weekly Violet-green Swallow

Tuesday, June 2

6:30am

Tuesday Birding at Hallam Lake

Select Days

Tuesday, June 2

6:00pm

Mindful Birding at Rock Bottom Ranch

Varies

Thursday, June 11

7:00am

City of Aspen Open Space Birding

Friday

Thursday, June 11

7:00am

North Star Birding: Summer Birds

Tuesday

Tuesday, June 16

5:00pm

Birding & Brushstrokes: Cedar Waxwing

Wednesday

Wednesday, June 17

6:30am

Birding & Conversation: Future of our Forests

Thursday

Wednesday, June 17

6:30am

Pitkin County Open Space Birding | Moore

June 18

Thursday, June 18

5:00pm

Birding by Habitat: Windstar

Monday

Monday, June 22

7:00am

North Star Birding: Songs of Breeding Birds

June 25

Thursday, June 25

6:00pm

June Evening Birding at Rock Bottom Ranch

Friday, July 3

Friday, July 3

3:00pm

Raptor Fair 2026

July 8

Wednesday, July 8

6:30am

Birding & Conversation: Wilderness as a Stronghold for Birds

Monday

Monday, July 20

7:00am

North Star Birding: South Side of the River

Varies

Wednesday, July 22

7:15pm

Hummingbird Study

Thursday

Thursday, July 23

7:30am

Beyond Identification: Field Skills for Birding in the Roaring Fork Valley

Tuesday

Tuesday, July 28

6:00pm

The Return of the Oystercatcher: Saving Birds to Save the Planet

July 29

Wednesday, July 29

7:00am

Birding & Conversation: Stories of Success in Bird Conservation

Thursday

Thursday, August 13

7:15am

Pitkin County Open Space Birding | Upper Roaring Gorge

August 20

Thursday, August 20

7:00am

Birding by Habitat: Snowmass

Wednesday

Wednesday, August 26

7:30am

Pitkin County Open Space Birding | Jaffee Park

Thursday

Thursday, August 27

7:30am

North Star Birding: Early Migration