The dark-eyed junco (*Junco hyemalis*) has experienced rapid phenotypic diversification within the last 18,000 years, resulting in several subspecies that reside in partially overlapping regions across North America. These subspecies have distinct …
Premating isolation in animals involves decision-making processes that affect whether individuals accept or reject heterospecific mates. An integrative understanding of the behavioural processes underlying heterospecific acceptance can clarify the …
Understanding the causes and consequences of divergence in mate recognition traits has long been a fundamental question in evolutionary biology. In songbirds, songs are culturally transmitted, and cultural divergence can generate discrete geographic …
Many songbird species have a predisposition to learn conspecific songs, suggesting song learning may be guided by an innate auditory template. Evidence for such a template includes preferential response to conspecific song in early life, even before …