"For three years, Jennifer Ackerman lived in the small coastal town of Lewes, Delaware, in the sort of blue-water, white-sand landscape that draws summer crowds up and down the eastern seaboard. Birds by the Shore is a book about discovering the natural life at the ocean's edge: the habits of shorebirds and seabirds, the movement of sand and water, the wealth of creatures that survive amid storm and surf. Against this landscape's rhythms, Ackerman...