(Reprinted from Jan. 23, 2008)
For some time now, the birds at our feeders have been nervous, flying into the prickly thickness of a nearby blue spruce or darting into the lilac bushes every time anything moves in the yard or even inside the window. Such behavior, especially in cold, snowy weather, can mean only one thing. There is a predator of some kind working in the area. But what kind? That is the question.