COS board member and trip leader Chris Holden recaps the Sunday Social walk at Humboldt Park on Oct. 4.
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COS board member Robyn Detterline recaps the Sunday Social Bird Walk at Humboldt Park on Aug. 23.
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Trip co-leader Chris Holden recaps the Sunday Social Bird Walk at Humboldt Park on Aug. 9, 2026.
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COS member and occasional cosplayer Kris Hansen recaps the Goth Walk for Birds on May 23 at Humboldt Park.
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COS member Steve Whitman recaps the Sunday Social bird walk at Humboldt Park on May 3.
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COS board member and trip leader Chris Holden recaps the Sunday Social Bird Walk at Humboldt Park on April 19.
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COS member Kate Allgeier recaps the Sunday Social Bird Walk at Humboldt Park April 5 that culminated in a wild goose “chase.”
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COS member Steve Whitman recaps the Sunday Social at Humboldt Park on March 15.
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Read about last year’s close encounters with Sandhill Cranes around Chicago.
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COS member Carrie Larkin recaps the Feb. 15 Sunday Social at Humboldt Park.
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Assistant field trip leader Mikko Jiminez recaps the Dec. 7 Sunday Social at Humboldt Park.
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COS Board Member Robyn Detterline recaps the annual Birdsgiving Stroll.
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COS board member and trip leader recaps the Sunday Social at Humboldt Park on Nov. 2, 2025.
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COS member Steve Whitman recaps the hawk-heavy Sunday Social at Humboldt Park on Oct. 19.
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COS board member and trip leader Chris Holden recaps the Sunday Social at Humboldt Park on Sept. 29.
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COS board member Vinod Babu recaps the walk he led at Humboldt Park on Sept. 13 as part of the Urban Birding Festival.
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COS member Mikko Jimenez recaps the Sunday Social bird walk at Humboldt Park on Aug. 31, 2025.
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COS member Kris Hansen recaps the Sunday Social American Bittern hunt at Humboldt Park on Aug. 17, 2025.
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