In reply to UKC News:
Thanks for that update while I was on holiday last week. The latest nest was built on Crescent on 26th May and the birds should now be incubating eggs, so please continue to avoid the area until 1 July. You may remember that we did "reserve" this area for them back in April but the lazy blighters have only just got round to nesting there!
The other current nest on Chippy Buttress (nr Cowper Stone) is also doing well. Chicks hatched at the weekend and so the signs should be removed by 14 June.
Thanks for your continuing help.