One of the most familiar North American birds, the snowbird, otherwise known as the Dark-eyed Junco, can be seen darting across forest floors, pecking at suburban birdfeeders, and foraging at the edges of parks, streams, and roads all across the continent. By one estimate, upwards of 630 million Juncos populate North America: twice the number of people living here in the U.S. No Bird Like the Snowbird: Integrative Approaches to Understanding Evolutionary Diversity in the Avian Genus Junco presents diverse expertise not just on the Dark-eyed Junco, but on the Junco genus more broadly. Collectively, the contributors draw on research, methods, and findings from organismal biology and evolutionary biology in order to show how juncos match their physiology and behavior to their environment via endocrine and timing mechanisms, and how Junco evolutionary history can provide insight into population divergence and the formation of new species. In so doing, they not only provide a definitive account of the Junco genus and speak to the its continuing importance as a model organism in a time of rapid global change, they also merge two major biological fields that are typically kept apart, with the goal of offering biologists an integrative framework for further studies into adaptation and population divergence.