Who will see the most species in a 16-hour period on May 1? Join a chapter team and help them win the title.
Members and non-members welcome to participate. Register below and choose your team.
The Chapter Big Day is a competition between participating chapters of the Illinois Audubon Society for the most species observed in a 16-hour period (12:00 am to 4:00 pm).
Registration is open to members and non-members. Chapter and Individual Big Day Champions will be awarded. Competitors may bird alone or with others anywhere within the boundaries of the State of Illinois. Ready, Set, Bird !
Counts must be turned in my May 4 to the designated coordinator for each Chapter team. Coordinator contact information will be provided to registered participants.
Questions? Contact us here.