Carlos Daniel Cadena,^1,* Andrés M. Cuervo,^1,2,3 Laura N. Céspedes,¹ Gustavo A. Bravo,^3,4,5 Niels Krabbe,⁶ Thomas S. Schulenberg,⁷ Graham E. Derryberry,⁸ Luis Fabio Silveira,⁴ Elizabeth P. Derryberry,^2,8 Robb T. Brumfield,³ Jon Fjeldså<sup>6

1</sup>Departamento de Ciencias Biologicas, Universidad de los Andes, Bogota, Colombia
²Department of Ecology and Evolutionary Biology, Tulane University, New Orleans, Louisiana, USA
³Museum of Natural Science and Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, USA
⁴Secao de Aves, Museu de Zoologia, Universidade de Sao Paulo, Sao Paulo, Brazil
⁵Museum of Comparative Zoology and Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts, USA
⁶Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark, Copenhagen, Denmark
⁷Cornell Lab of Ornithology, Ithaca, New York, USA
⁸Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Tennessee, USA

^*Corresponding author: ccadena@uniandes.edu.co