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COS Home Page


Chicago

Ornithological

Society

Established 1912

Join

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COS Home Page


Chicago

Ornithological

Society

Established 1912

Join

Welcome to COS!


2019 LaBagh Fundraiser

for the Birds

Mark your calendars for the 2019 celebration of LaBagh Woods and the Lower North Branch of the Chicago River on Saturday May 18. With live music, silent auctions, raffles, and the camaraderie of bird, nature, and habitat restoration enthusiasts, we are aiming to raise $15,000 to continue the restoration of LaBagh Woods and expand into neighboring preserves along the Lower North Branch.


 


Support COS

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We warmly appreciate any contributions to support our conservation and education efforts.  Read about reasons to support our organization in the Membership tab.

Art courtesy of Miranda Brandon

Art courtesy of Miranda Brandon

Bird Friendly Chicago is an alliance to promote a safer urban environment for birds through improved lighting, landscaping and glass features of buildings. COS encourages you to declare your support for a new building ordinance to protect migratory birds from the tragedy of glass collisions in our city.

COS maintains an eBird account with the Cornell Lab of Ornithology. Our presence on eBird is primarily for sharing field trip checklists, keeping track of bird monitoring for conservation projects, and transcribing historical observations from paper checklists from some of our legendary Chicago area birders.  

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If you have an eBird account, you can explore our data here:  COS eBird page  

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Chicago Ornithological Society is a registered 501(3)(c) non-profit organization engaged in promoting the appreciation of birds.  We offer education programs, recreational bird watching opportunities, and habitat restoration projects in the Chicago region. 

Contact Us

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Chicago Ornithological Society is a registered 501(3)(c) non-profit organization engaged in promoting the appreciation of birds.  We offer education programs, recreational bird watching opportunities, and habitat restoration projects in the Chicago region. 

Contact Us