I assume everyone who might be interested knows this already, but in the ditch on the right hand side of the track leading to the BHM Tower Hide you are virtually guaranteed to see one or more of these...
Down at the Tesco building site was a nice gathering of gulls, viewable from behind the 'Riverside Workshops'. Included among their number were these:
A smart juv Yellow-legged Gull
The White One (at the back) - now sporting a somewhat more mature-looking bill