We had a sparrowhawk hit the sliding doors and stun itself. It recovered and flew off just as I approached it.

I saw one taking a collard dove here and have had a couple of other sightings but that it. There have been a couple of other occasions when I've wondered whether one is around though, when the bird table and feeders have been having regular visitors then one day they pretty well all disappear, I've guessed mostly looking for somewhere safer.