By Vidya Rajan, Columnist, The Times It’s migration season. The males have left, and I expect that the females will leave soon too. Flying geese honk overhead, the plethora of robins pecking in the garden have moved on, and the birdseed in the feeders lasts much longer with the insatiable starlings gone. With the big task of seasonal travel underway or looming for these and other animals, I will...