Whittaker, D. J., Soini, H. A., Atwell, J. W., Hollars, C., Novotny, M. V., & Ketterson, E. D. (2010). Songbird chemosignals: Volatile compounds in preen gland secretions vary among individuals, sexes, and populations. Oxford University Press.

Whittaker, Danielle J., Helena A. Soini, Jonathan W. Atwell, Craig Hollars, Milos V. Novotny, and Ellen D. Ketterson. Songbird Chemosignals: Volatile Compounds in Preen Gland Secretions Vary Among Individuals, Sexes, and Populations. Oxford University Press, 2010.

Whittaker, Danielle J., et al. Songbird Chemosignals: Volatile Compounds in Preen Gland Secretions Vary Among Individuals, Sexes, and Populations. Oxford University Press, 2010.