@IWRATS, pas de crags on the Somerset Levels. - not me saying this - the programme on R4. I am away to check
Ok Glastonbury TOr and Cheddar Gorge
THis paper from 2007 would seem to be the progenitor of the prog on R4 today. Also states sea eagle using trees in poland not cliffs.
I think it is very interesting but if bored just scroll to end of the paper before the references and there is the most brilliant photo of a sea eagle. Wingspan a go go
https://www.britishbirds.co.uk/wp-content/uploads/article_files/V100/V100_N08/V100_N8_18_27.pdf