Finding Birds in Southern Illinois
Detwiler, Henry D.
Wild Birds in CityParks [Revised Edition]
Walter, Alice and Herbert
Biennial Report of the Commissioner of Fisheries and Game for Indiana 1908
Sweeney, Z.T. [Commissioner]
Endangered and Disappearing Birds of the Midwest
The Birds of Illinois
Bohlen, H. David
Finding Birds in Jackson County, Illinois
The Drug Plants of Illinois
Tehon, Leo R.
New Acarina. Parts I and II
A Comparative Study of Bird Populations in Illinois, 1906-1909 and 1956-1958
Graber, Richard R.; Jean W. Graber
American Birding Association Field Guide to Birds of Illinois
Michael L. P. Retter
Vascular Plants of Illinois
Jones, George Neville; George Damon Fuller
New Records for Illinois Vascular Plants
Winterringer, Glen S.