Thanks to Ceri for the heads up on Sully Island. 
Lol Middleton and I went down there late morning but 
most birds had moved to the shore line on Sully. 
Amongst them was a Black Redstart - first I have seen 
down there. It was on the rocks to the west of the 
Captain's Wife but flew off into the caravan park. We are 
used to seeing them at Penarth Marina on a few miles away 
but good to seem them at Sully now.
Some record shots at 
http://andyburnsphotography.zenfolio.com/passerines/h405a675d#h64647a6b
Also some good shots of Rock Pipit that was hanging 
around

http://andyburnsphotography.zenfolio.com/passerines/h405a675d#h6b50d4f7