1. U.S. Geological Survey, Patuxent Wildlife Research Center, Laurel, Maryland, USA
2. National Museum of Natural History, Smithsonian Institution, Washington, DC, USA
3. Cornell Laboratory of Ornithology, Ithaca, New York, USA
4. Department of Biology, San Diego State University, San Diego, California, USA
5. Museum of Vertebrate Zoology, University of California, Berkeley, California, USA
6. 24 Idaho Street, Bishop, California, USA
7. Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
8. Museum of Natural Science and Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, USA
9. Michigan State University Museum and Department of Integrative Biology, East Lansing, Michigan, USA
10. Science & Education, Field Museum of Natural History, Chicago, Illinois, USA
11. University of Alaska Museum, Fairbanks, Alaska, USA