one of the pix is from U.C. Davis
and a professor there has published these little bits of wisdom:
Publications:
Uy, J. Albert C., Gail L. Patricelli & Gerald Borgia. 2001. Complex Mate Searching in the Satin Bowerbird Ptilonorhynchus violaceus. American Naturalist. 158: 530-542.

Patricelli, Gail L., J. Albert C. Uy, Gregory Walsh & Gerald Borgia. 2002. Sexual selection: Male displays adjusted to female's response. Nature. 415: 279-280.

Patricelli, G. L., J. Albert C. Uy & Gerald Borgia. 2003. Multiple male traits interact: attractive physical displays facilitate attractive behavioral displays in satin bowerbirds. Proc. Roy. Soc. London, Ser. B. 270: 2389-2395.

Patricelli, Gail L., J. Albert C. Uy & Gerald Borgia. 2004. Female signals enhance the efficiency of mate assessment in satin bowerbirds (Ptilonorhynchus violaceus). Behavioral Ecology. 15: 297-304.

Coleman, Seth W., Gail L. Patricelli & Gerald Borgia. 2004. Variable Female Preferences Drive Complex Male Displays. Nature. 428: 742-745.