The BBC are reporting that Black Redstart have four chicks at a secret location in Birmingham. I didn't realise just how few breeding pairs there are in England and Wales (20-70).
I know they like abandoned buildings and if memory serves did well in the aftermath of world war II.
There are (or were) some birds at Rainham Marshes underneath the bridge and some are at Sizewell near minsmere. Nicely guarded those are!