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Subject "Illinois River Valley"
Preliminary report on availability and use of waterfowl food plants in the Illinois River Valley [by] Frank C. Bellrose, Jr. [and] Harry G. Anderson.
By: Bellrose, Frank Chapman, - Anderson, Harry George,
Publication info: Urbana, Ill.,Natural History Survey,1940.
Contributed by: University of Illinois Urbana Champaign
Subjects: Birds Ducks Food Freshwater plants Illinois Illinois River Valley