1 Groningen Institute for Evolutionary Life Sciences; University of Groningen; 9700 CC; Groningen; The Netherlands. Sovon Dutch Centre for Field Ornithology; 6591 ED; Nijmegen; The Netherlands.. paulvanels@gmail.com.
2 Department of Biological Sciences; The University of Texas at El Paso; El Paso; TX 79968; USA. Biodiversity Collections; The University of Texas at El Paso; El Paso; TX 79968; USA. mgharvey@utep.edu.
3 Coordenao de Biodiversidade; Instituto Nacional de Pesquisas da Amaznia; Av. Andr Arajo 2936; Aleixo; Manaus; AM; Brazil. joao.capurucho@ufjf.br.
4 Museum of Natural Science; Louisiana State University; Baton Rouge; LA 70803; USA. Department of Biological Sciences; Louisiana State University; Baton Rouge; LA 70803; USA. robb@lsu.edu.
5 Manaus; AM; Brazil. ictinia@earthlink.net.
6 Museum of Natural Science; Louisiana State University; Baton Rouge; LA 70803; USA. pacheco.jfe@gmail.com.