Paul Taillie is an avian ecologist that employs an interdisciplinary approach toward better understanding how birds are responding to their changing environment and the resulting implications for global biodiversity. He was trained as a field ecologist and field-based observational studies remain fundamental to his work. However, in order to make inferences at the broad scales at which global change processes unfold, his more recent work aims to integrate remote sensing, citizen science, and other increasingly available data sources and analytical methods.