1. Cornell Lab of Ornithology, Cornell University, Ithaca, NY 14850, USA.
2. DataONE, University of New Mexico, Albuquerque, NM 87106, USA.
3. School of Education, University of California, Davis, CA 95616, USA.
4. National Park Service, Schoodic Education and Research Center and Acadia National Park, Winter Harbor, ME 04693, USA.
5. School of Aquatic and Fisheries Sciences, University of Washington, Seattle, WA 98195, USA.