Registration for this trip is not required.This site remains one of DuPage County’s premier birding spots. Walk around the marsh with us, approximately 3.25 miles, to check out resident species and early fall migrants. Most of our walk will be on the preserve limestone and earthen trails; wear appropriate shoes and clothing. Meet at the visitor parking lot on the north side of Mack Rd., located between Winfield Rd. and Rt. 59 in Warrenville.https://maps.app.goo.gl/6bWV27h75kFfnAe57Leader: Kyle Wiktor, (708) 506-5186.