Let us know your thoughts and ideas.
- Have questions or suggestions for our organization?
- Want to be involved with COS?
- Do you have a conservation concern for birding in the Chicago area that COS should know about?
- Do you want to co-sponsor or invite our members to an event?
- Do you have a trip or program you would like to present with us?
Or write us via snail mail:
Chicago Ornithological Society
332 South Michigan Avenue, Ste 1032
Chicago, IL 60604