We had the very friendly and exceedingly competent folks from Renewal by Andersen here today to take care of the last three windows on the house. Over the past half-dozen years, I'd replaced the rest of them myself, 13 in all, but for reasons of location and weight, the remainder of the project was, I judged, beyond my, alas, declining abilities. So the project is done and done beautifully, and as a reward, I of course hit the trail. As I walked through the old field at the Bell Cedar refuge, I heard lots of bird commotion and singing, everything from Barred Owl hoots to the "wheep, wheep, wheep" of Great Crested Flycatchers. I was also bowled over by the powerful scent of Autumn Olive, a horrible invasive threatening to take over the edge of what was, until fairly recently, a corn field. It's hard to find anyone with a positive word to say about this aggressive public enemy, but as I watched, I noticed a Ruby-throated Hummingbird arrive and put the flowers to good use. This doesn't outweigh the considerable negatives but it shows that even an invasive can have its occasional benefits.