Skip navigation.
Illinois 1986-1991 (pending review)

Atlas Home

Illinois Breeding Bird Atlas
  Methods   Species Info   Results
   General methods
   Breeding codes
      by species (view maps!)
   by block
   by region
   All Species

About this project in BBA Explorer
Data are presented here by agreement between the atlas project and USGS Patuxent Wildlife Research Center.
Results should be cited as:
Breeding Bird Atlas Explorer (online resource). 2018. U.S. Geological Survey Patuxent Wildlife Research Center. <Date of access>. Data extracted from: Kleen, Vernon M., Liane Cordle, and Robert A. Montgomery. 2004. The Illinois Breeding Bird Atlas. (Illinois Natural History Survey Special Publication No. 26.) Champaign, IL: Illinois Natural History Survey. 459 pp.
Use Policy
Any use of these data should be accompanied by the proper citation as shown above.
The atlas project was sponsored by the Illinois Department of Natural Resources in a joint effort with the Illinois Audubon Society and its chapters, the Illinois chapters of the National Audubon Society, and independent Audubon and birding organizations in Illinois.
Treatment of the received dataset

We imported the received dataset with modifications as follows to better combine with other atlases or to match publication cited above:

  • Breeding code"/" in the original publication is shown as "E" in this website.
  • Black Vulture was included in the original publication with a species account and a blank map but it is excluded here because we do not include species without mappable data.
  • 9 species (Gadwall, American Black Duck, Green-winged Teal, Redhead, Ring-necked Duck, Lesser Scaup, Ringed Turtle-Dove, Long-eared Owl, White-throated Sparrow) and 2 hybrids (Brewster's Warbler and Lawrence's Warbler) were not mapped in the original publication but are included here because they were reported with breeding evidence of PO or higher.

Contact Information
Vernon M. Kleen see the atlas project site or contact the authors (no email address available - sorry).
U.S. Department of the Interior || U.S. Geological Survey || Patuxent Wildlife Research Center  Laurel, MD, USA 20708-4038
This site is:
Information contained in this application does not necessarily have the endorsement of USGS.

Last updated: Site - May 2014; Content - various, depending on atlas.
Page generated on: 14-Nov-2018