I was just having a look through the weekend's photos from when I happened across this little fellow captured on the slack over Dagenham Chase:
Originally I took the photo because I wanted a closer look at the Gull on the left. That reddish breast isn't an artifact of the photograph, it was obvious through binculars and more than passing strange. Hoever, notwithstanding the possibility of some kind of weird drug fuelled fling resulting in a Black Headed Gull x Robin hybrid, I'm forced to conclude that it's probably just been sitting in a puddle of red stuff - probably on a tip somewhere.
However the gull to his right is much more interesting, because he doesn't look Black Headed at all. My money's on Common, any takers? A patch tick hangs in the balance.
The photo has already been cropped down to a fraction of its size and then blown up to about 200% in GIMP so it doesn't get any better than this I'm afraid.