After reading J. A. Baker’s fifty-year-old British nature classic The Peregrine, John Lane found himself an ocean away, stalking resident red-shouldered hawks in his neighborhood in Spartanburg, South Carolina. What he observed was very different from what Baker deduced from a decade of chronicling the lives of those brooding migratory raptors. Baker imagined a species on the brink of extinction because of the use of agricultural chemicals on European farms. A half century later i...