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Upcoming Events

 
Field Trips and Events
Bilingual McKinley Park Birdwalk / Paseo Bilingüe Parque de McKinley
Mar 15
McKinley Park
Bilingual McKinley Park Birdwalk / Paseo Bilingüe Parque de McKinley
McKinley Park

RSVP Required

Join COS for a bilingual birding trip at McKinley Park! This event is great for all ages including multi-generational families where some family members are more comfortable with Spanish.

McKinley Park
Big Marsh Mudhen Run!
Mar 15
Big Marsh Park
Big Marsh Mudhen Run!
Big Marsh Park

Join Chicago Park District, Friends of Big Marsh, and Chicago Ornithological Society for the return of the Mudhen 5k fun run at Big Marsh Park on Saturday, March 15!

Big Marsh Park
North Pond Wednesday Bird Walks
Mar 19
North Pond Casting Pier
North Pond Wednesday Bird Walks
North Pond Casting Pier

In cooperation with Third Coast Birding and Peggy Notebaert Nature Museum, COS is proud to continue our long tradition of Wednesday morning bird walks at North Pond!

North Pond Casting Pier
Woodcock Walk - Air Station Prairie
Mar 21
Kent Fuller Air Station Prairie
Woodcock Walk - Air Station Prairie
Kent Fuller Air Station Prairie

RSVP Required

Join COS on an evening hike to observe the spectacular making dance of the elusive Timber doodle (or American Woodcock).

Kent Fuller Air Station Prairie
Douglass Park Bird Walk
Mar 23
Douglass (Anna & Frederick) Park
Douglass Park Bird Walk
Douglass (Anna & Frederick) Park

RSVP Required

Join us as we explore Douglass Park and observe winter birds and early spring migrants.

Douglass (Anna & Frederick) Park
LaBagh Woods Stewardship Workday
Mar 23
LaBagh Woods Grove #1
LaBagh Woods Stewardship Workday
LaBagh Woods Grove #1

Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.

LaBagh Woods Grove #1
Woodcock Walk - Air Station Prairie
Mar 24
Kent Fuller Air Station Prairie
Woodcock Walk - Air Station Prairie
Kent Fuller Air Station Prairie

RSVP Required

Join COS on an evening hike to observe the spectacular making dance of the elusive Timber doodle (or American Woodcock).

Kent Fuller Air Station Prairie
North Pond Wednesday Bird Walks
Mar 26
North Pond Casting Pier
North Pond Wednesday Bird Walks
North Pond Casting Pier

In cooperation with Third Coast Birding and Peggy Notebaert Nature Museum, COS is proud to continue our long tradition of Wednesday morning bird walks at North Pond!

North Pond Casting Pier
Birds & Bytes: The Biking Big Year
Mar 26
Birds & Bytes: The Biking Big Year

Virtual Program

RSVP Required

Join COS for the latest episode of our virtual program series Birds & Bytes for a conversation with Beau Schaeffer about the greenest big year!

Woodcock Walk - Air Station Prairie
Mar 28
Kent Fuller Air Station Prairie
Woodcock Walk - Air Station Prairie
Kent Fuller Air Station Prairie

RSVP Required

Join COS on an evening hike to observe the spectacular making dance of the elusive Timber doodle (or American Woodcock).

Kent Fuller Air Station Prairie
Woodcock Walk - Park 566
Mar 29
Park 566
Woodcock Walk - Park 566
Park 566

RSVP Required

Join COS on an evening hike to observe the spectacular making dance of the elusive Timber doodle (or American Woodcock).

Park 566
The Nighthawk at North Park Village Nature Center
Mar 30
North Park Village Nature Center
The Nighthawk at North Park Village Nature Center
North Park Village Nature Center

RSVP Required

Join us for a program all about the mysterious nighthawk; what makes them tick, why are they disappearing, and what's being done to save them right here in Chicago.

North Park Village Nature Center

The Chicago Birder Blog

 
Blog
Field Trip Recap: Peregrine Falcon Walk
Field Trip Recap: Peregrine Falcon Walk

COS member Kris Hansen recaps the Peregrine Falcon Walk through Chicago’s Loop on March 9, 2025.

Field Trip Recap: Crabtree Nature Center
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.

Field Trip Report: Jackson Park
Field Trip Report: Jackson Park

Joann Umeki recaps the COS walk through Jackson Park on Feb. 23, 2025.

2025 COS Guide to the Indiana Dunes Birding Festival
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.

Book Review: The Nighthawk's Evening
Book Review: The Nighthawk's Evening

David Hoyt reviews The Nighthawk’s Evening, a book stemming from PhD research by author Gretchen Newberry

Buy Bird-Friendly Chocolate for Your Tweetheart
Buy Bird-Friendly Chocolate for Your Tweetheart

There’s a new chocolate in town—one that supports bird-friendly habitat!