COS member Joann Umeki recaps the bird walk at Cranberry Slough on Jan. 4, 2026.
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COS member Lauren Kostas recaps the Owl Prowls at North Park Village Nature Center in November and December.
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COS member Steve Whitman recaps the owl prowl at Marian R. Byrnes 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 member Joann Umeki recaps the Owl Prowl at Park 566.
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Find the best holiday gifts for the birder in your life—even if that birder is you!
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Jennifer Mach dives into the history of the Lisle-Arboretum Christmas Bird Count.
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COS Board Member Robyn Detterline recaps the annual Birdsgiving Stroll.
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Birder/photographer Terry Elia documents the recent sighting of ibises at Indian Ridge Marsh.
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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 joint COS/Lake County Audubon bird walk at Cuba Marsh on Oct. 25.
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COS member Lauren Kostas recaps the bird walk in Harms Woods in October.
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COS member Steve Whitman recaps the bird walk at West Ridge Nature Preserve on Oct. 26.
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It's Christmas Bird Count season! With well near a dozen counts happening throughout the Chicagoland area, how does one get started? We've got you covered!
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COS trip leader Sammy Cabindol recaps COS in the Suburbs: Crabtree Nature Center on Oct. 20.
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COS trip leader recaps the bird walk at Crabtree Nature Center on Sept. 29.
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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 member Lauren Kostas recaps the bird walk at Horner Park on Sept. 2, 2025.
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