Acknowledgments

Revised account (2023): We thank Peter Pyle and Guy Kirwan for extensive and valuable contributions to the Plumage and Systematics pages of this account. Paul Rodewald provided many valuable contributions throughout the account. We thank all of the land management agencies that supported, and continue support, research on Canyon Wrens on their properties.

Original account (1995): We thank L. R. Mewaldt (1917–1990) for teaching both knowledge and enthusiasm. We thank M. Ralph Browning, Christine Bush, John Cornely, Alan Poole, Keith Russell, Jim Sedgwick, Peter Stettenheim, and Blair Wolf for their valuable comments on earlier drafts of this manuscript and for their support with equipment, discussions, and time. We thank Sandra Gaunt and the staff of the Borror Laboratory of Bioacoustics for preparing the sonogram; Danny Bystrak of the Bird Banding Laboratory for banding data; Bruce Peterjohn, John Sauer, Sam Droege, and Jeff Price for Breeding Bird Survey data and analysis; Cornell Nest Record Cards, Lloyd Kiff, and the Western Foundation of Vertebrate Zoology for egg and nest data; Ned Johnson and Carla Cicero, Museum of Vertebrate Zoology, Berkeley; Richard C. Banks, M. Ralph Browning, and Joe Marshall, U.S. National Museum; and Greg Farley, University of New Mexico Museum Albuquerque, for access to study collections and data. We thank Anne Bonnell, R. W. Campbell, Geoff Guepel, Keith Hanson, W. C. Hunter, S. N. G. Howell, Hugh Kingery, Ray Kluever, and Chris Thompson for sharing data, observations, and field work during this project. SLJ thanks the researchers at the U.S. Geological Survey, especially Leda Beth Gray, Bob Miller, and Jo Peterson, for introducing her to geology and the Canyon Wren.