William A. Searcy is Robert E. Maytag Professor of Ornithology@the University of Miami in Coral Gables, Florida. His research examines aggressive and courtship signaling in song sparrows and swamp sparrows. He received his B.S. from the University of California@Berkeley and his Ph.D. from the University of Washington. He has worked collaboratively with Stephen Nowicki on the function and development of animal signals using bird song as a model system for more than 10 years. He is author, with Nowicki, of The Evolution of Animal Communication: Reliability and Deception in Signaling Systems (Princeton University Press, 2005). Address: Department of Biology, University of Miami, Coral Gables, Florida 33124. Internet: wsearcy@miami.edu