Steve Arlow, an obsessive larophile, relocated the adult-type SLATY-BACKED GULL today that I and 33 others saw at Rainham Marsh RSPB two weeks ago. The bird was feeding on a private landfill site (with NO ACCESS) this afternoon and Steve did remarkably well in obtaining an excellent set of images
See his excellent website here and trawl the most recent images - http://www.birdersplayground.co.uk/Recent%20Images.html
These are some really educational images and I welcome further comments from those that know Slaty-backed Gull well
Lee Evans