We are interested in the fields of ecology, biogeography, and evolutionary biology. The long-term goal of our research is to integrate these fields by i) recognizing and synthetizing avian distribution patterns, paying particular attention to contact zones and phylogeographic breaks; ii) understanding how environmental gradients along ecotones define avian species distributions, affecting patterns of taxonomic, phylogenetic, and functional diversity; and iii) unveiling the evolutionary mechanisms and processes that shaped the distribution of current biotas, both at the species and community levels. To achieve these goals, we use tools borrowed from diverse fields, including geographic information systems (GIS) and ecological niche models (ENM), quantitative ecology, and molecular tools to analyze genomic data, including tree building methods, statistical phylogeography, and population genetics. Most of our research relies heavily on field studies, where we conduct avian surveys, obtain audio recordings of bird vocalizations, and collect specimens. While we conduct and value exploratory research and general collecting, we also conduct and encourage students to produce hypothesis-driven research, with solid experimental designs based on strong theoretical frameworks.