One of the most fascinating elements of observing birds is the phenomenon of migration. This is so alien to us that most humans register “bird migration” only as a phrase, an abstractly existing notion, rather than a real observable phenomenon, vividly and distinctly alive in our daily experience. But migration is happening all around us! Birds that were not here six months ago are here now, with a different suite of species and behaviors matching the changing of the seasons. Becoming aware of...