This project wouldn’t have been possible without the tremendous support from Mercedes S. Foster. Locating nightjar nests at night at CCBS was a daunting task and I am extremely grateful to the following people who informed me when they found one: Ursula Valdez, Peter J. Murphy, Wilfredo Arizabal, Ariadne Angulo, Paul S. Wenninger, Donald J. Brightsmith, and Daniel Huamán. John W. Terborgh, the Instituto Nacional de Recursos Naturales of the Peruvian Ministry of Agriculture (INRENA), and the administration of Manu National Park granted permission to conduct the research at CCBS. Paul Sweet (AMNH), Van Remsen (LSU), Kimball Garrett (LACM), Nate Rice (PANS), David Willard (FMNH), the late Ned K. Johnson (MVZ), José G. Tello, and Tom Webber (FLNS) allowed me to examine the museum specimens and various vocalizations. My appreciation is extended to Franciso J. Vilella, Mark K. Robbins, James A. Sedgewick, John A. Smallwood, Mercedes S. Foster, and Clait E. Braun for their critical reviews of the original manuscript which serves as the background for this species account. I also thank Tom S. Schulenberg for his review and encouragement of this account, and Greg Budney and Tom Vigliotta (Macaulay Library, Cornell Lab of Ornithology) who provided digitized copies of my audio and video recordings.