2017 Midwest Peregrine Season Narrative Midwestperegrine.umn.edu Photo on Cover by Stephanie Ware, b/g W/72 Mouse. 2017 was on 'off ' year for the Illinois peregrines where productivity was at its lowest in over 20 years. So many factors contributed to that including territorial fights, weather, construction activity near nests sites and age of adults. Certainly the later three contributed to no young for b/g W/72 Mouse, a 2008 hatch from the Broadway site in Illinois, and the male at Chicago's UIC site. His mate b/g 2*Y Nitz, a 2001 hatch from Milwaukee, Wisconsin, was already 16 years old, an advanced age for a Midwest breeding peregrine. Though three eggs were laid by the pair, all failed to hatch perhaps in part to female age and/or the continual construction on the natal building which resulted in vibrations to the nest ledge. On the positive side, the number of occupied peregrine territories in Illinois continued its uphill climb which gave hope for a better breeding season in the following years. – Mary Hennen, Project Director, Chicago Peregrine Program 1 MIDWEST PEREGRINE FALCON RESTORATION, 2017 REPORT Patrick T. Redig* John S. Castrale**, Amber Burnette*** *The Raptor Center **780 Lawrenceport Rd Univ. of Minnesota Mitchell, IN 47446 1920 Fitch Ave.
[email protected] St. Paul MN 55108
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[email protected] This report is a compilation of data and information provided by peregrine observers and field personnel in the Upper Midwest and Canadian Provinces of Manitoba and Ontario. A peregrine website and database for the Midwest is open at the University of Minnesota <http://midwestperegrine.umn.edu>.