Aren't they fabulous FRISKA?
I've only just come home from watching them this afternoon.
Generally they are local (always exceptions of course) keeping to familiar hunting grounds and nesting sites for many years. More than likely what you will have seen this morning was a family party. Mum, Dad and youngster or parent and two kids. The parents are teaching them about this time of year to ride the thermals , glide and this was what I saw, land in a tree! Not easy for an ungainly juvenile so mum and dad were mewing in encouragement.