Well, they've reached Lakehills, though not very many yet. This one must have grabbed one of the nests left from previous years.
And this one is trying to build a nest. Not easy when you're talking about a busy convenience store and restaurant located there.
And this one I'm not sure about, because Cave Swallows have used this carwash in the past. But the bird does look kind of like the other ones, so maybe it's a Barn Swallow.