Field Trip Recap: Big Marsh/Park 564
COS member Steve Whitman recaps the field trip to Big Marsh on April 12, 2025.
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Field Trips Recap: American Woodcock Walks
COS member Kris Hansen recaps the American Woodcock walks at the end of March and beginning of April 2025.
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Field Trip Recap: Bilingual Walk in McKinley Park
COS trip leader Em de Blas recaps the April 6 bilingual bird walk in McKinley Park in English and Spanish.
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Field Trip Recap: Douglass Park
COS member Joann Umeki recaps the field trip to Douglass Park on March 23, 2025.
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Field Trip Recap: Peregrine Falcon Walk
COS member Kris Hansen recaps the Peregrine Falcon Walk through Chicago’s Loop on March 9, 2025.
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Field Trip Recap: Crabtree Nature Center
COS member Steve Whitman recaps the bird walk at Crabtree Nature Center in the northwest suburbs on March 2, 2025.
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Field Trip Report: Jackson Park
Joann Umeki recaps the COS walk through Jackson Park on Feb. 23, 2025.
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2025 COS Guide to the Indiana Dunes Birding Festival
COS’s annual guide to the Indiana Dunes Birding Festival highlights the best the festival has to offer.
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Book Review: The Nighthawk's Evening
David Hoyt reviews The Nighthawk’s Evening, a book stemming from PhD research by author Gretchen Newberry
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Buy Bird-Friendly Chocolate for Your Tweetheart
There’s a new chocolate in town—one that supports bird-friendly habitat!
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Field Trip Report: Chicago River Blitz
COS member Lauren Kostas recaps the four stops made during the COS Chicago River Blitz Feb. 1.
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Winter, Birding, and the Art of Slowing Down
Learn about how we can get green and cozy with birds this winter.
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Field Trip Report: Douglass Park
Joann Umeki recaps the field trip to Douglass Park on Feb. 2, 2025.
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Results of the 2024 Nighthawk Monitoring Season
Building on the strong foundation set by our first two years, the 2024 season saw significant growth in both participation and data collection, helping us better understand and conserve Chicago’s nighthawk population.
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A Record-breaking Year
Tarik Shahzad shares his experiences during his record-breaking Big Year in 2024.
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COS Annual Meeting Recap
A recap of the COS annual meeting held in January 2025.
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COS Statement on Community
Read about our commitment to keeping the COS community safe and strong.
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Update on Avian Flu (January 18, 2025)
COS provides an update on avian bird flu (HPAI), including recommendations on reporting dead or diseased birds and ways to prevent the spread of the disease.
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2024: The Year in Birds
COS takes a look back at the top local bird stories of 2024.
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Support COS in the New Year!
Read about COS’s accomplishments in 2024 and how you can support us through the new year.
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