It was only when we started watching our Vivotek Tawny Box with our PTZ camera, we realised that a couple of Buzzards were regularly hunting from the perch in front of the nest box. We mounted a temporary camera up by the box entrance, so we could also see the perch. This camera, along with the PTZ gave us some excellent footage.
I then mouted a Bushnell NatureView on the tree, aimed at the perch. After a couple of weeks of experimenting, we started to get some excellent footage of at least 2 individuals.