Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleEffects of Habitat Area on the Occurrence of Grassland Birds in Illinois.AuthorsWalk, Jeffery W.; Warner, Richard E.AbstractReports on a study that documented the occurrence of bird species within Prairie Ridge State Natural Area in Jasper County, Illinois. Description of the study area and methods; Results; Discussion.SubjectsILLINOIS; JASPER County (Ill.); UNITED States; BIRDS; AVIARIESPublicationAmerican Midland Naturalist, 1999, Vol 141, Issue 2, p339ISSN0003-0031Publication typeArticleDOI10.1674/0003-0031(1999)141[0339:EOHAOT]2.0.CO;2