Field Trip Report: Horner Park Nighthawk Watch
COS president and field trip leader Edward Warden recaps the August 27 COS Nighthawk Watch at Horner Park.
Read More
Dan's Feathursday Feature: Northern Rough-winged Swallow
In his latest Feathursday Feature, Dan Lory describes his journey learning how to photograph the Northern Rough-winged Swallow.
Read More
2023 COS Fundraiser Recap
Katie Larson summarizes the 2023 Chicago Ornithological Society Fundraiser event held in August at Metropolitan Brewing.
Read More
Field Trip Report: Salt Creek Marsh and Wood Dale Reservoir
COS board member and field trip co-leader Christina Harber recaps the August 27 COS bird walk at Salt Creek Marsh and Wood Dale Reservoir.
Read More
Birding Through The Year: Summer 2023
In his latest installment of Birding Through the Year , David Hoyt dissects the connotations of an “incidental” bird.
Read More
The Woodcock Has Landed: A Conversation with Alex Tomlinson
Morgan Harpster shares the details behind COS’s new logo, designed by artist Alex Tomlinson.
Read More
The Woodcock Takes Flight: A Conversation with Walter Marcisz
Lauren Kostas interviews former COS president Walter Marcisz to reflect on the current COS logo, which he designed over thirty years ago, as well as the changes in COS and Chicago birding over the years.
Read More
Results of the 2023 Nighthawk Monitoring Season
With the 2023 nighthawk monitoring season behind us, we are excited to now share some of the key results from the efforts of our amazing volunteers. Spoiler alert, they did in fact find nighthawks!
Read More
Chasing the Timberdoodle
Where did the original COS American Woodcock logo come from? Read our theories as we unravel the mystery of our beloved timberdoodle.
Read More
Field Trip Report: Orland Grassland
COS board member and field trip co-leader Jake Vinsel recaps the July 16 bird walk at Orland Grassland.
Read More
Backpacks for Conservation: an update on Chicago's Black-crowned Night-herons
Earlier this year, a team of researchers and volunteers came together to identify and develop techniques to encourage Black-crowned Night-herons to explore additional rookery locations. Today, we’re excited to share an update on this project and some of the results of those efforts!
Read More
COS MAPS Bird Banding Station Enters Year 4
COS Vice President and Calumet Project committee chair Stephanie Beilke provides information about the fourth year of bird banding at Big Marsh.
Read More
Redfin Promotion of Bird-Friendly Gardening
COS was among several birding organizations contacted by Redfin Corporation for tips to create a bird haven in our yards and gardens. Check our their post to see what best practices were shared.
Read More
COS Breaking News!
Enjoy this recap of the latest COS news for July 2023.
Read More
Field Trip Report: Humboldt Park
COS board member and field trip co-leader Robyn Detterline recaps the June 17 COS/Feminist Bird Club Chicago inclusive walk at Humboldt Park.
Read More
Why Common Nighthawks Like Ball Games (and Other Intriguing Facts About These Fascinating Birds)
Guest blogger Maggie Van Dyke provides interesting facts about the Common Nighthawk.
Read More
Field Trip Report: Iroquois County SWA Whip-poor-will Walk
COS president and field trip leader Edward Warden recaps the June 10 COS Whip-poor-will walk at Iroquois County State Wildlife Area.
Read More
In Memoriam, Claire Halpin
Field Trip Report: Sand Ridge Birds & Botany
COS president and field trip leader Edward Warden recaps the June 4 COS Birds & Botany walk at Sand Ridge Nature Center.
Read More
Field Trip Report: Northerly Island
COS president and field trip leader Edward Warden recaps the May 18 COS bird walk at Northerly Island.
Read More
