Kenyon, H. L., Alcaide, M., Toews, D. P. L., and Irwin D. E. 2017. Cultural isolation is greater than genetic isolation across an avian hybrid zone. Journal of Evolutionary Biology 30:81-95.
Delmore, K. E., Kenyon, H. L., Germain, R. R., and Irwin, D. E. 2015. Phenotypic divergence during speciation is inversely associated with differences in seasonal migration. Proceedings of the Royal Society B: Biological Sciences, 282:20151921.
Kenyon, H. L., Toews, D. P. L. and D. E. Irwin. 2011. Can song discriminate between MacGillivray’s and Mourning warblers in a narrow hybrid zone?. The Condor 113: 655-663.