If there is odd activity to go along with it, you may well have caught something. Remodeling seems to bring out activity. Hope your work turns out beautiful. Keep us updated.No it's not a spot on the wood or a reflection. When the picture was taken the house had been totally empty for 6 months so there was nothing there. I've messed with the image on photoshop and I can tell its behind the wood and transparent. It just seems to be a very odd shape and look to me, but I guess it could be as simple as a spider web catching the light just right. Although other pics of that area didnt show anything.