Field Trip Report: Humboldt Park
Writer David Hoyt summarizes the April COS field trip to Humboldt Park.
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Field Trip Report: North Pond
Field trip leader Edward Warden summarizes COS’s inaugural After Work bird walk at North Pond in Lincoln Park.
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Hark! A Poem About a Bird
In honor of National Poetry Month, COS offers this sampler of bird-themed poetry. Try your hand at matching the verse to the poem and poet.
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Birding Through the Year: April 2023
David Hoyt explores the sound of birds at his patch with this April installment of Birding Through the Year.
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Field Trip Report: Woodcock Walk Roundup
COS President, field trip leader, and all around Timberdoodle fan gives us a roundup of COS’s 2023 spring woodcock walks.
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Field Trip Report: Richard Clark Park
Field trip leader Vinod Babu recounts a recent COS field trip to Richard Clark Park.
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Women's History Month: Geneva Stratton-Porter
David Hoyt writes about Gene Stratton-Porter, a turn-of-the-century writer, photographer, and naturalist COS celebrates during this Women’s History Month
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Dan's Feathursday Feature: Ross's Gull
Enjoy this latest installment of Dan Lory’s Feathursday feature, in which he describes his encounter with the Ross’s Gull that showed up in Chicago earlier this month.
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Women's History Month: Marian Byrnes
Read about why COS celebrates Marian Byrnes, a Southeast Side conservation activist, during this Women’s History Month.
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Women's History Month: Hazel Johnson
Read about why COS celebrates Hazel Johnson, the mother of the environmental justice movement, during this Women’s History Month.
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Field Trip Report: Humboldt Park
David Hoyt reports on the recent COS field trip to Humboldt Park.
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COS Breaking News!
Enjoy this recap of the latest COS news for March 2023.
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Field Trip Report: Indian Ridge
Field Trip leader Jake Vinsel recaps the recent Indian Ridge Marsh COS bird walk.
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COS 2023 Indiana Dunes Birding Festival Guide
Read COS’s guide to this year’s Indiana Dunes Birding Festival.
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Field Trip Report: Basin Blitzes
Edward Warden recaps the COS Chicago River and Calumet River Basin Blitzes held this winter.
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Birding Through the Year: January/February 2023
Contributor David Hoyt brings us the latest installment of his Birding Through the Year series, sharing his thoughts on winter birding.
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Introducing Tweets and Eats
COS announces a new program: Tweets & Eats!
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LaBagh Woods Stewardship Update: December/January
Katy Krigbaum gives a winter update about the conservation work being completed at Labagh Woods.
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COS Social Media Community Guidelines
Read Chicago Ornithological Society’s social media community guidelines.
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Field Trip Report: Big Marsh and Indian Ridge
Kris Hansen reports on the bird encounters at Big Marsh and Indian Ridge Marsh during the February 4 COS field trip.
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