1. Cornell Lab of Ornithology Cornell University Ithaca NY 14850 U.S.A.
2. Department of Neurobiology and Behavior Cornell University Ithaca NY 14853 U.S.A.
3. Sede del Sur Universidad de Costa Rica Golfito 60701 Costa Rica
4. Macaulay Library, Cornell Lab of Ornithology Cornell University Ithaca NY 14850 U.S.A.
5. Department of Natural Resources and the Environment Cornell University Ithaca NY 14853 U.S.A.
6. Department of Biology SUNY Buffalo State Buffalo NY 14222 U.S.A.
7. Department of Ecology and Evolutionary Biology Cornell University Ithaca NY 14853 U.S.A.
8. Centre for Sustainable Ecosystem Solutions University of Wollongong Northfields Ave Wollongong NSW 2522 Australia
9. Division of Biological Sciences University of Montana Missoula MT 59812 U.S.A.
10. Department of Environmental, Science, Policy and Management University of California, Berkeley Berkeley CA 94709 U.S.A.
11. Section for Ecology and Evolution, Department of Biology University of Copenhagen Copenhagen DK‐2100 Denmark
12. Department of Fish, Wildlife, and Conservation Biology Colorado State University Fort Collins CO 80523 U.S.A.
13. Center for Conservation Bioacoustics Cornell Lab of Ornithology, Cornell University Ithaca NY 14850 U.S.A.
14. Department of Geological Sciences Stanford University Stanford CA 94305 U.S.A.