Sakamoto, Cairo, and Feynman. These are not the wrens. These are the kitties watching a wren. For a couple of months, always in the morning, we have been finding one or two birds darting around our enclosed porch. They cannot find their way out, but have somehow found a way in. Maybe by slipping between the narrowest gap in the sliding door? There are no holes in the screen, the doors are only open when we go in or out, and not at all over night. So, how? I was finally able to identify them. They are Bewick's wrens. They're very small, pretty, and we worry they may be trying to nest on the porch, but then they always seem so eager to leave. Usually we open all the doors and leave them to it. This time I sat quietly, to observe.
Even though I cannot figure it out, clearly it's easy enough for them to get in, and objectively, I can see the draw... our porch is jam packed with curiosities, and nooks and corners for shelter.