Acknowledgments

CET thanks the field assistants that made her study in Panama possible.  Thanks to Sonya Ayer, Ronald Bassar, Deborah Buehler, Alberto Castillo, Ben Lascelles, Ben Hancock, and Melissa Meadows. In particular I thank Chelina Batista, Isis Ochoa, and Iciar Gallo whom stuck it out in the field with me for multiple years while studying this species.  Thanks for Vera Bojic, Sarah Kosher, and Carla Minniti for watching many hours of videotapes.  Thanks in particular to my advisor, Jeff Brawn.  Thanks to the University of Illinois at Urbana-Champaign, Smithsonian Tropical Research Institute, Animal Behaviour Society, Cooper Ornithological Society, Wilson Ornithological Society, and NSF Life History Nexus for financial support. 

JPK thanks Avery Briggs, Caitlin Wells, Shane Dubay, Santiago Escobar, and many of the assistants listed above.  Thanks to W.J. Kelley, University of Washington, University of California-Davis, Smithsonian Tropical Research Institute, Animal Behavior Society, Explorer's Club, and the American Ornithologists' Union for financial support. Many thanks also to my Ph.D. advisor, John C. Wingfield, for intellectual guidance and for allowing me to travel to Panama every summer.