COS is excited to once again participate in and co-organize the Chicago area effort in the City Nature Challenge!

From April 30 through May 3, 2021, hundreds of cities worldwide will compete to see who can make the most observations of urban flora and fauna, find the most species, and get the most people participating. The City Nature Challenge (CNC) aims to engage city residents and visitors in learning about their local nature and to help all of us better understand urban biodiversity. Anyone can take part on their own, assist others with identification, or even organize a bioblitz at a nearby park.

For more information about the challenge, using iNaturalist, and how to participate or organize your own event, visit: https://rebrand.ly/CityNature

COS hikes part of the City Nature Challenge:
(dates coming soon)