The Northern Prairie Wildlife Research Center (NPWRC) has posted five newly online resources at the Center's homepage. These scientific articles were originally published in print journals, but are fully (and freely) available here, complete with figures. The final paper is by authors Lawrence D. Igl, Douglas H. Johnson, and Harold A. Kantrud, and was originally published in 1999 in Canadian field-Naturalist [113(4):646-651]. The paper presents statewide population estimates and frequencies of occurrence of uncommon species, based on surveys conducted in 1967, 1992, and 1993. All papers may be downloaded as .zip files.