Resource provided by UW-Madison Robinson Map Library. This data set reflects updates by WDNR through 10/31/2014. This data layer is representing Important Bird Area Boundaries in Wisconsin, prepared by the Wisconsin Department of Natural Resources (WDNR). For more information on Wisconsin's Important Bird Area program, see publication PUB-WM-475-2007, Important Bird Areas of Wisconsin: Critical Sites for the Conservation and Management of Wisconsin's Birds, Yoyi Steele, editor.