National Audubon Society in Illinois

• Recreation: Birding: North America: United States: Illinois 
• Regional: United States: Illinois: Society and Culture: Organizations 

• Champaign County Audubon Society  - Presents the society's mission statement, programs, field trip schedules, calendar of events, and newsletters.
• Chicago Audubon Society  - Official chapter homepage presents a calendar of events, contact details, information on membership, and related links.
• Decatur Audubon Society  - Chapter of the National Audubon Society based in Macon County. Site provides information on membership, activities, meetings, and committees.
• Illinois Audubon Society  - Organization dedicated to flora and fauna preservation in Illinois. Site posts a calendar of upcoming events, news, and related educational resources.
• Lake County Audubon Society  - Presents a program schedule, society newsletters, meeting and program details, and links to recommended websites.
• Lake-Cook Chapter of the Illinois Audubon Society  - Information on organization programs, membership, field trips, and contacts. With birding resources.
• Northwest Illinois Audubon Society  - Provides calendar of events, membership information, volunteer opportunities, activities, and resource links. Located in Freeport.