| Champaign County Audubon Society: Newsletter, field trips, events, and local birding areas. |
| Chicago Audubon Society: Serves the Chicago area. Site includes conservation news, calendar of events, newsletter archives, and a rare bird alert. |
| Decatur Audubon Society: Meetings, activities, educational opportunities, and newsletter articles. |
| Illinois Audubon Society: An independent conservation organization founded in 1897. Site includes events calendar, backyard nature section, educational resources, profiles of several common bird species, and information about sanctuaries and local chapters. |
| Lake County Audubon Society: Chapter of National Audubon serving Lake County. Site includes information about programs and field trips. |
| Lake-Cook Audubon Society: Chapter of the Illinois Audubon Society based in Highland Park, Lake County. Information on bird walks and programs. |
| Prairie Woods Audubon Society: Based in Arlington Heights, serves northwest Cook County. Meetings, field trips, educational programs, and newsletters. |
| Thorn Creek Audubon: Serves south Cook County and all of Will County. |
| Vermilion County Audubon Society: Overview of activities. |
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