In reply to John Alcock:
I have just posted the following on the BMC RAD (awaiting moderation):
There are two further access problems for those wishing to climb on the Unknown Wall area besides the landowner not allowing access to the bottom.
1. There has been a major rockfall from the Dragon area. Dragon and Unknown Pleasures have been affected and are probably unsafe to climb. The climbing on Amanita is unaffected, but the bottom of the route could be exposed to further rockfall. Hammer Horror and routes further right including Yellow Edge and Quip U for Leisure are unaffected and appear fairly safe from rockfall. Based on visual inspection from the ground. 04.03.21.
2. There is now a large twiggy raven's nest on Psychopath Way in the break before the second belay of Yellow Edge. From the top of the Ramp I watched a raven sat on the edge of the nest and flying in and out on 02.03.21. I looked through binoculars from the ground on 04.03.21. but couldn't see over the top of the nest to check if there was a bird on eggs. Egg laying often begins in late February. If the ravens do lay eggs there, then there will have to be a climbing restriction until the young fledge. It would definitely have to cover Unknown Pleasures, Psychopath way, Hammer Horror, Zombie Nation, Yellow Edge, Captain Swing, Haystack and the Imploding Galaxy. Amanita might go a bit close too. My feeling is that Was it You? doesn't need banning as it's tucked round the corner and I couldn't see the nest from the route. I suggest everyone avoids the listed climbs until it's clear what the ravens are doing.