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Upcoming Events
Field Trips and Events
In cooperation with Third Coast Birding and Peggy Notebaert Nature Museum, COS is proud to continue our long tradition of Wednesday morning bird walks at North Pond!
RSVP Required
Join COS for Flock Club as we gather to share our passion for birds in a casual environment. Spend your summer evening playing outdoor games.
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
Join the stewards of Montrose Beach Dunes for a workday at one of the top bird watching spots in the country!
Registration Required
Join us as we explore Humboldt Park in search of late summer birds in this incredible oasis in the surrounding urban environment.
RSVP Required
Join COS for a nocturnal twist on the classic hawk watch, our fifth annual Nighthawk Watch!
In cooperation with Third Coast Birding and Peggy Notebaert Nature Museum, COS is proud to continue our long tradition of Wednesday morning bird walks at North Pond!
In cooperation with Third Coast Birding and Peggy Notebaert Nature Museum, COS is proud to continue our long tradition of Wednesday morning bird walks at North Pond!
Registration Required
Join us as we explore Humboldt Park in search of late summer birds in this incredible oasis in the surrounding urban environment.
In cooperation with Third Coast Birding and Peggy Notebaert Nature Museum, COS is proud to continue our long tradition of Wednesday morning bird walks at North Pond!
Join the stewards of Montrose Point Bird Sanctuary (Magic Hedge) for a workday at one of the top bird watching spots in the country!
The Chicago Birder Blog
Blog
Trip co-leader Chris Holden recaps the Sunday Social Bird Walk at Humboldt Park on Aug. 9, 2026.
COS member and trip leader Brighten Jelke recaps the River Park Heron Watch on June 10 and June 17.