Our work on animal communication involves research that integrates behavioral and evolutionary ecology. We use a variety of methods and approaches including phylogenetic analysis, genomics, and field experiments of behavioral interactions to address the proximate and ultimate factors controlling variation in signals and signaling. We conduct the majority of our behavioral research on the white-crowned sparrow (Zonotrichia leucophrys), which is a well-studied model organism for studies on learning, communication and signal evolution.  We also use comparative approaches to assess the tempo and mode of signal evolution in Neotropical suboscines (Aves: Tyranni).

Urban dependent selection on bird song

Diversification of a pantropical radiation (Aves: Tyranni)