Illinois Birds
- Species list, distribution map and detailed information on a large number of bird species found in Illinois.
- http://www.inhs.uiuc.edu/chf/pub/ifwis/birds/

Bird Checklists
- Checklists for the state and 9 refuges in Illinois.
- http://www.npwrc.usgs.gov/resource/birds/chekbird/r3/17.htm

Chicago Area Birds and Wildlife
- Searchable database of photos of local birds and wildlife, plus a birding forum.
- http://www.chicagobirds.com/

Carlyle Lake Bird Report
- Photos, bird checklist, site guide, and recent sightings.
- http://bh2.htc.net/~kdan/report.htm

Illinois Ornithological Society
- Information on field trips for birders, bird alerts, and the Illinois Ornithological Records Committee.
- http://www.illinoisbirds.org/

Birding Fest of Southernmost Illinois
- Annual event held in late April-early May at the Cache River State Natural Area.
- http://www.birdingblitz.org/

Evanston North Shore Bird Club
- Located in north suburban Chicago. Field trips, meetings, and photos.
- http://www.ensbc.org/

Illinois and Chicago Net-Birding
- Urs Geiser's comprehensive birding site, with checklists, rare bird alerts, and resources.
- http://home.xnet.com/~ugeiser/Birds/

Speaking of Birds
- Jim Frazier's site with articles, resources, images, and speeches on birds and birding.
- http://www.speakingofbirds.com/

Bald Eagles in the Wetlands of Western Illinois
- Elementary school project.
- http://lth3.k12.il.us/Museums/VIT/eagles/

The Gadwall Birding Page
- Chicago area birding guide, photographs, and trip reports.
- http://www.gadwall.com/birding/

Birding Breaks: Illinois Grassland Species and Research
- Virtual tour in search of grassland species; tag along with researchers as they investigate breeding success.
- http://www.virtualbirder.com/vbirder/onLoc/onLocDirs/BB_ILSUM_01/

Illinois Raptor Center
- Rehabilitation center near Decatur.
- http://www.illinoisraptorcenter.org/

DuPage Birding Club
- Meetings, field trips, hotline, count results, and county bird checklist.
- http://home.xnet.com/~ugeiser/Birds/BirdClub.html

Chicago Ornithological Society
- Meetings and programs, field trips, educational activities, and IBET (Illinois Birders Exchanging Thoughts) e-mail group.
- http://www.chicagobirder.org/

Birding in Illinois
- Bird checklist, maps, rare bird alerts, information about tours and guides, and links to birdwatching sites in Illinois.
- http://www.camacdonald.com/birding/usillinois.htm

Lake Renwick Heron Rookery Nature Preserve
- One of the largest protected heron nesting sites in our state. Plainfield, IL
- http://www.sparklink.com/rookery/

The Birds of Fermilab
- Pages containing the results of current survey of the birdlife found on the site of the Fermi National Accelerator Laboratory Chicago, Illinois.
- http://www.fnal.gov/ecology/wildlife/list.html