1. U.S. Department of Agriculture, Animal and Plant Health Inspection Service; Wildlife Services, National Wildlife Research Center; Ohio Field Station, 6100 Columbus Avenue Sandusky OH 44870 USA
2. U.S. Department of Agriculture, Animal and Plant Health Inspection Service; Wildlife Services, Airports Wildlife Hazards Program; 1400 Independence Avenue SW Washington D.C. 20250 USA
3. U.S. Department of Agriculture, Animal and Plant Health Inspection Service; Wildlife Services, Airports Wildlife Hazards Program; 6100 Columbus Avenue Sandusky OH 44870 USA