In 1974, the Massachusetts Audubon Society and the Massachusetts Division of Fisheries and Wildlife launched a five-year survey to map the distribution of all the birds that breed in the Commonwealth - the first such comprehensive effort in North America. Nearly 600 volunteers spent countless hours in the field collecting data. This landmark volume presents the results of their efforts. The book includes distribution maps showing possible, probable, and confirmed breeding areas for 198 Massachusetts nesting species on a grid of 989 tensquare-mile blocks. Opposite each species map is a summary...