Ruffed Grouse Restoration in Iowa
This report (.pdf) documents in detail the releases of a total of 1,354 birds at 30 sites in 16 Iowa Counties in 15 different years, 1962-1999. The released birds had been live-trapped in four States (Indiana, Michigan, Minnesota, and Wisconsin) and northeastern Iowa.
The report concludes (excerpt):
Unfortunately, it may be futile to continue to attempt to re-establish grouse in southern and southeastern Iowa since the conditions that caused initial declines of grouse populations still exist and may actually be becoming more unfavorable. . . . additional releases can not be justified.Source:
Iowa Department of Natural Resources. 2002 (October). Ruffed Grouse restoration. Pp. 160-167 in Trends in Iowa wildlife populations and harvest 2001. Iowa Department of Natural Resources, Conservation and Recreation Division.