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Upcoming Events
Field Trips and Events
Head on over the Newberry Library for Winging It: A Brief History of Humanity’s Relationship with Birds, a COS-sponsored exhibit.
RSVP Required
Borbs and Forbs is a monthly event for nature enthusiasts and those inspired to give back to our communities. Each month we will visit a Chicago Park to admire local birds and other fauna, followed by a stewardship day with the park's steward.
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!
Join COS for Flock Club Book Club to discuss Lily Taylor’s Turning to Birds. In the spirit of our yearlong celebration of green birding, we’ll discuss this book’s mindfulness approach to birding.
Join the stewards of Montrose Point Bird Sanctuary (Magic Hedge) for a workday at one of the top bird watching spots in the country!
Join the stewards of Montrose Beach Dunes for a workday at one of the top bird watching spots in the country!
RSVP Required
Join COS for a nocturnal twist on the classic hawk watch, our third annual Nighthawk Watch!
RSVP Required
Join COS for a nocturnal twist on the classic hawk watch, our third annual Nighthawk Watch!
Join the stewards of Montrose Point Bird Sanctuary (Magic Hedge) for a workday at one of the top bird watching spots in the country!
Chicago Ornithological Society is proud to present, in association with our many birding partners, The Urban Birding Festival! Taking place in and around Chicago on September 12-14, 2025 this festival highlights the extraordinary bird diversity present in the area with over 400 recorded species in the Chicago region.
Join the stewards of Montrose Beach Dunes for a workday at one of the top bird watching spots in the country!
The Chicago Birder Blog
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