1. Wildlife Research Division Environment and Climate Change Canada Delta BC Canada
2. Department of Forest and Conservation Sciences University of British Columbia Vancouver BC Canada
3. Department of Biology Carleton University Ottawa ON Canada
4. SELVA: Investigación para la Conservación en el Neotrópico Bogotá Colombia
5. Cornell Lab of Ornithology and Department of Natural Resources and the Environment Cornell University Ithaca NY USA
6. Moore Center for Science Conservation International Arlington VA USA