1. Oklahoma Biological Survey; University of Oklahoma; 111 East Chesapeake Street Norman Oklahoma 73019 USA
2. Department of Biology, University of Oklahoma; 730 Van Vleet Oval Norman Oklahoma 73019 USA
3. Cornell Lab of Ornithology; 159 Sapsucker Woods Road Ithaca New York 14850 USA
4. Department of Mechanical and Aerospace Engineering; Cornell University; 124 Hoy Road, Upson Hall Ithaca New York 14853 USA
5. Department of Ecology and Evolutionary Biology; E241 Corson Hall, Cornell University Ithaca New York 14853 USA