Abstract Peregrine Grand Rapids is a group in Grand Rapids, Michigan that is dedicated to reestablishing peregrine falcons. In the mid to late 1980s, Peregrine Grand Rapids worked with the Michigan Department of Natural Resources' Nongame Wildlife Fund to establish a hack box (nesting box) on the top of McKay Tower. Over three years, nearly 20 young peregrine falcons were released into the wild from the hack box. The Grand Rapids effort was part of a larger Great Lakes area effort to boost the...