Friend of mine found a nest on this route yesterday, so best avoid it. We didn't have anything to put a sign to let people know. Perhaps anyone going to shorn cliff could put something under he route or the Crag moderator could pop over? (It's a bit far to pop over for me )
In reply to Davvers:
Thanks for this. I popped down there this morning and put up a sign below the route. Whilst I didn't notice any activity (possibly due to the awful weather), anyone able to identify the birds is kindly requested to email firstname.lastname@example.org to let the local BMC access rep know.