Just following up on the Carolina Wren subject, FYI, a pair of Carolina Wrens first appeared at our house in northeast Litchfield ~1999±, during a bout of near 0 deg F temps in early December.  We tried a few things and ended up putting out straight all-natural chunky peanut putter in a suet log with holes.  What we think was that pair made it thru the winter and nested on top of the back porch the following spring.  We have continued with the peanut butter for the last 19+ years, and have always had a pair of Carolinas every winter.  In recent years we added meal worms, which the Carolinas seem to especially love.  We made a kind of a cave feeder out of stacked bricks, to slow down the rate of consumption by other birds, especially blue jays -- the wrens are perfectly happy to go into a dark tunnel to get the worms (as are chickadees and titmice).  Our this winter's pair of wrens seem to have made it thru this most recent cold spell. Bill Moorhead Consulting Botanist/Plant Community Ecologist 486 Torrington Road Litchfield, CT 06759 Phone & FAX: 860-567-4920 Cell phone: 860-543-1786 Email: whmoorhead@optonline.net