In reply to midgen:
Can't give you a definitive answer but can give some general "advice" in case you're not familiar:
- IIRC the Peregrines that used to nest on Hen Cloud no longer do - unless that site has again been re-established
- If there is a current bird ban then there should be in situ signs, and/or possibly people monitoring the site (maybe it was only at busy weekends way back then) who will ask you to "go elsewhere" if you get it wrong
- If you approach and there are Peregrines about with eggs or chicks (and they are disturbed) then they will let you know with high pitched agitated screeching - find a recording on the web if you need to know what it sounds like - retreat
- You would be highly unlikely to have managed to start climbing before disturbed Peregrines let you know
Luckily, the Roaches is just up the road instead
P.S. If there are Ravens nesting there then the young will have most likely fledged by now - early nesters