I SAID IT A FEW WEEKS AGO, when I saw a change of the guard at my feeders a couple of weeks ahead of “normal”–do the birds know something I don’t yet? Seemed to me then that winter’s first teases must be close at hand. And now the National Weather Service says it may drop to 33 one night this week, slightly higher the others (not as scary as parts of Wisconsin, the Dakotas, Minnesota and Iowa, where I see–egads!–winter weather advisories and freeze watches and warnings). Here we northern gardeners go–time to start dragging everybody tender into the garage, basement, house. I talked about this on the podcast this week (also on iTunes), and for a more thorough reference, try this overwintering primer.