Dr. Charles Brown, Professor of Biology at the University of Tulsa, is researching on the behavioral and disease of ecology of birds. His long-term project (27 years) is among the longest running, continuous field studies on birds in North America. His focus on cliff swallows identifies the causes of group living and to understand why breeding colonies vary in size. Dr. Brown talked about what he's discovered so far. For more information, go to: https://www.utulsa.edu/academics/colleges/college-of-engineering-and-natural-sciences/departments-and-schools/Department-of-Biological-Science/Our-Faculty-and-Staff/B/Charles-Brown.aspx