The other evening, from the woods down below our house, came the distinctive, haunting call of the screech owl. I was particularly delighted to hear it, since it was the first time I’d done so since moving to Wellfleet some 25 years ago. It used to be a fairly common sound when I lived in Brewster, deep in the oak woods that the screech owl seems to prefer. Its numbers have never been great on Cape Cod, and are fewer on the Lower Cape, which is still predominantly pine woods.