2023 Chapter Big Day
May 13, 2023
READY, SET, BIRD !
The Chapter Big Day is a competition between participating chapter and affiliate teams of the Illinois Audubon Society for the most species observed in a 24-hour period.
Open to members and non-members.
Count can take place anywhere in the state of Illinois.
Download 2023 Information and Rules here.
OPENS APRIL 1, 2023
2023 Award Categories