Comparison of Non-Lethal versus Lethal Control Methods for Red-Tailed Hawks and Other Bird Species at the Waste Management Outer Loop Recycling And Disposal Facility, Louisville, Kentucky, USA

of paper presented at Bird Strike Committee USA/Canada Meeting, Lake Mary and Sanford, Florida, August 18–21, 2008. Comparison of Non-Lethal versus Lethal Control Methods for Red-Tailed Hawks and Other Bird Species at the Waste Management Outer Loop Recycling And Disposal Facility, Louisville, Kentucky, USA Russell P. DeFusco BASH, Inc., 5010 Lanagan Street, Colorado Springs, CO 80919 USA Kevin M. Mieczkowski Waste Management, Inc., 2673 Outer Loop, Louisville, KY 40219 USA C. Jared Quillen DeTect, Inc., 2673 Outer Loop, Louisville, KY 40219 USA Removal of red-tailed hawks and other raptors by trapping and relocating, euthanasia, or other techniques is often used by airport managers to address hazardous birds, however many professionals disagree about the effectiveness of this approach. Relocating birds has drawbacks due to expense, site fidelity leading to returning birds, and other issues. Lethal control methods suffer from permitting requirements and may lead to adverse public opinion. Removing birds by relocation or lethal means often results in other individuals, including inexperienced juveniles, attempting to fill vacated territories, with smaller territories, higher densities, and birds that may be less adept at avoiding aircraft traffic. The Louisville Kentucky Waste Management Outer Loop Recycling and Disposal Facility (WMOLRDF) operates an aggressive bird control program to minimize potential impacts to the nearby Louisville International Airport. Early management efforts in the program focused on raptor removal through lethal means with limited non-lethal harassment. During that time, average daily raptor observation counts remained low and relatively stable; however, the number of raptors lethally removed on a monthly basis exceeded those observed during average daily counts, clearly indicating that new birds were filling vacated territories. A moratorium imposed by Waste Management on killing raptors (and several other species) began at the landfill in October 2005. Nonlethal harassment efforts targeting Red-tailed Hawks were implemented that