It’s 1 a.m. and outside my window is a chortling mockingbird. Have you ever yelled at a bird to go to bed? I do so because I know what will soon happen. At about 4:30 a.m.—yes, way before sunrise—the local rooster will start cackling. They’re supposed to crow when the sun comes up. What’s wrong with these birds? Neither of them can tell what time it is. The price of leaving windows open on summer nights. Then I think, if the birds—who are supposed to have nature’s clock inside them—can’t tell when to go to go to bed or get…