our resident wren

When we moved in to this log cabin, there were two ornamental log houses left on the bookshelf by the former owners. I needed the space for books, so I moved these outside to a plant shelf in our covered patio. It sits in the corner, up against the place where corner logs meet and overlap.

Recently I was messing about with a plant on the middle shelf when I was surprised by a wee bird flying out from the larger of the two houses. (OK, Bill said I jumped and shrieked.) Apparently a Bewick's Wren has moved in! I haven't seen a wren since I was around 6 years old in Illinois.

I've now seen a pair of wrens sitting on the back of a porch swing, the female having a bit of food in her beak. So I'm wondering if there is a baby inside?