Awww they are cute. We have several pairs in our barn They come back every year. Each generation leaves and comes back even the kids come back too. (if they are lucky ) And yes it's true, they hardly ever sit still. They used to dive bomb one of our old cats that used to try and eat them. LOL They would even go after me. XD They never touched us but it was funny because the cat would try and catch it, even if it was just out of reach.