1. Museum of Southwestern Biology University of New Mexico Albuquerque New Mexico USA
2. Department of Biology University of New Mexico Albuquerque New Mexico USA
3. Cornell Lab of Ornithology Cornell University Ithaca New York USA
4. Department of Ecology and Evolutionary Biology Cornell University Ithaca New York USA
5. Cornell University Museum of Vertebrates Cornell University Ithaca New York USA
6. Centro de Ornitología y Biodiversidad (CORBIDI) Lima Peru
7. Museum of Vertebrate Zoology University of California Berkeley California USA
8. Department of Integrative Biology University of California Berkeley California USA