Seddon, Nathalie, Botero, Carlos A., Tobias, Joseph A., Dunn, Peter O., MacGregor, Hannah E. A., Rubenstein, Dustin R., Uy, J. A., Weir, Jason T., Whittingham, Linda A., and Safran, Rebecca J. 2013. "
Sexual selection accelerates signal evolution during speciation in birds."
Proceedings of the Royal Society B: Biological Sciences, 280, (1766).
https://doi.org/10.1098/rspb.2013.1065.