Research scientist John H. Rappole's lifelong journey has been in search of one thing--finding out why birds migrate. The developer and chief proponent of the "dispersal theory" of bird migration, Rappole takes readers on a tour of the decades-long discovery process that led him to propose a counter to the still-widely accepted "northern home," or weather-based theory of migration. Migration Mysteries: Adventures, Disasters, and Epiphanies...