Birding for All

Connect with us to study, conserve, and enjoy Colorado birds. Colorado Field Ornithologists and birding are for people of all ages and types. Become a part of a statewide community.


Contribute to CFO and amplify the impact of your gift by donating now through December 6th.

Protecting Colorado Birds

The 2022 Colorado Birding Challenge raised nearly $40K to fund Gunnison Sage-Grouse conservation. The world population of this threatened species is estimated at 2700, 87% of which are found in the Gunnison Basin.
The 2023 Birding Challenge takes place May 20, 2023.

Opportunities for Everyone

CFO hosts events and provides education throughout the year for all types of interests. Take your choice of webinars, ID workshops, field trips, competitive birding events, conventions, and more.

Become a member

CFO members receive the outstanding quarterly journal Colorado Birds. Members may register before others for events with limited capacity and often enjoy discounted prices.

Improve your skills

CFO provides online and in-person resources for you to become a better birder.

Giving and Pledging

CFO provides various opportunities for giving and pledging to help conserve Colorado's birds and to help support our programs. You can make a difference.


Pinyon Jay Community Science Project – CFO Introductory Presentation

Dec 15, 2022 7:00PM—8:00PM


Colorado Birding Challenge 2023

May 20, 2023 ALL DAY

In a county of your choice all across Colorado

2023 Joint CFO/WFO Convention

Jul 19, 2023—Jul 24, 2023

Copper Mountain Convention Center, Summit County, Colorado.

Latest CFO News

Unique Sighting: Thick-billed Kingbird
The afternoon of September 21, 2022 was very gray with some rain. Linda Chittum and Ada ...
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Image of a Canada Warbler on the cover of Colorado Birds jouranl
Colorado Birds Fall 2022 Available Now!
The digital Fall 2022 issue of Colorado Birds is now available to all CFO Members! You can ...
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Save the Date: 2023 Annual Convention
We're heading to the mountains in 2023! Colorado Field Ornithologists is pleased to announce that the 2023 convention will ...
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Request for Proposal: Colorado Birding Challenge Beneficiary Program
Colorado Field Ornithologists is now inviting applicants to submit proposals to be the beneficiary of the ...
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Unique Sighting: Yellow Rail
Last month Eric DeFonso was at Monte Vista NWR in the San Luis Valley. He heard ...
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New Meadowlark Species! Chihuahuan Meadowlark Includes the Lilian’s Subspecies
The 63rd Supplement to the Check-list of North American Birds from the American Ornithological Society was ...
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Colorado Field Ornithologists to Donate Nearly $40,000 to Help Restore Habitat for the Endangered Gunnison Sage-Grouse
On Friday, July 8th at 3:00 pm Colorado Field Ornithologists (CFO) will present a check for ...
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white and gray gull with wings extended.
Slaty-backed Gull in the News
A rare seagull that originates in Siberia and winters in Japan has been spotted in Larimer ...
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"Colorado Birding Challenge was an incredible experience for our family. I'm grateful for CFO helping keep our kids engaged with worthwhile and beautiful things!"

Eryn Lynum

Larimer County, Colorado

"This was an amazing trip, I learned so much. A big thank you to Nick and Chris for leading and everybody who organized the trip. Well done, what a beautiful day."

Dana Hiatt

Wild Gull Chase Field Trip Participant

Our Impact

"CFO's generous gift is making a significant impact for the conservation of grassland birds. It's enabling the installation of a permanent Motus station that will track birds as they migrate across the Great Plains. CFO funding is restoring 346 acres of key habitat that benefits wintering birds in Chihuahua.

Tammy VerCauteren

Executive Director

Bird Conservancy of the Rockies