Fall BioBlitz Brings Community Together

Nearly 40 teachers, community scientists, students and curious minds turned out on Saturday, October 11, for a vibrant day of exploration, learning, and connection at Linne Woods of the Forest Preserves of Cook County in Morton Grove. The special BioBlitz event, co-hosted by Friends of the Chicago River and the Geographic Society of Chicago, offered participants a hands-on opportunity to explore local ecosystems and contribute to regional biodiversity research. Participating partners included the Forest Preserves of Cook County, the Peggy Notebaert Nature Museum, Northeastern Illinois University, the Refugee Education & Adventure Challenge, and the National Geographic Explorer-Educator Exchange Program.

Linne Woods, a rich natural area along the North Branch of the Chicago River, served as the perfect place for the day’s activities. Participants joined local scientists for guided nature walks and engaged in science-based explorations focused on the diverse life supported by the forest preserve and river. The area’s mix of trails, wetlands, and woodlands makes it a haven for an impressive variety of species—including amphibians, reptiles, mammals, birds, and countless insects. Aquatic macroinvertebrates identified by the guests included numerous damselfly larvae, clams, mussels, and several leeches.

Using the iNaturalist app, attendees documented species sightings throughout the day, contributing valuable data to local biodiversity records. For many, this was their first experience using the app, highlighting the accessibility of community science and the power of observation.

“This event is all about making science accessible and exciting,” said Mark Hauser, education manager for Friends of the Chicago River. “When people of all ages come together to explore and document the natural world, they build a deeper connection to the river and its surrounding habitats. That connection is a first step toward developing long-term stewardship.”

In addition to scientific discovery, the event fostered community building among educators, families, and environmental enthusiasts. By combining education, technology, and the joy of being outdoors, this river BioBlitz inspired new and longtime nature lovers to protect and celebrate the biodiversity that thrives along the river system.