Chicago Ornithological Society Membership
Click “Join Today” to join by webform and pay by credit card.
If you prefer to submit your membership by mail/check, print and complete this printable membership form.
All membership fees and donations are tax-deductible.
Memberships
Individual $20.00
Family $25.00
Senior (62+) $15.00
Student $5.00
Why join Chicago Ornithological Society?
From expert guided trips to cutting-edge science to avenues for action, we bring together bird enthusiasts of all ages, experience levels, and backgrounds to share our love of birds and further their conservation.
Check out some of our member benefits below.
The Chicago Birder
COS Members are automatically subscribed to our quarterly magazine, The Chicago Birder. The magazine features local writers and photographers, content, events and stories relevant to birding and bird conservation in the Chicago area.
Educational Programs
We schedule several programs a year, some in-person and online with our Birds & Bytes series. Topics range from Big Years, international birding, conservation topics, and everything in between on birds.
Field Trips
Learn from some of the best birders in the Chicago area. We provide field trips for all levels of experience, including trips focused on beginning birders and trips in Spanish.
Social Events
Join us as we gather to share our passion for birds in a casual and accessible environment. With each gathering featuring a new location, theme, games, food, and good company, there's a place for everyone in our Flock Club.