My research generally relates to global change ecology, and is aimed at better understanding how anthropogenic activities influence biodiversity responses spatially and temporally. Most of the work I do falls into one of three general spheres: (1) urban ecology; (2) citizen science; and (3) ornithology. However, often my work involves more than one of these three spheres. Examples of recent research project including estimating the economic potential of vagrant birdwatching, continental-scale responses of bird diversity to urbanization, and mechanisms with which to improve future biodiversity sampling by citizen scientists. While I generally use birds as a taxon, I am increasingly interested in other taxa responses to urbanization (e.g., frogs).