Goofed!
Sorry for any confusion. I included the image below captioned ‘Yellow-legged Gull’ in the latest county round-up when it is actually a Lesser Black-backed Gull (albeit at the light-mantled end of the graellsii range!). Thanks to Neil McMahon for pointing this out!
Northants birds 
woops may have got my report of a yellowleg at titchmarsh wrong
Date: Sat, 7 Nov 2015 11:20:15 +0000 To: ekgraham@hotmail.co.uk