Gull watching

There's something strangely therapeutic about Gull watching. Picking through our standard gulls for something a little bit strange or off-beat must hit the same nerve as crossword puzzles, and now that there are so many more varieties of gull to look out for its twice the fun.

I've noticed at Radipole that Med Gulls seem to be confined to a small area; the open water between the road bridge and about 100 m beyond the centre and the associated car park. I've scoured the gull-filled boating lake on many occasions, found an Iceland Gull, but never seen a Med Gull there.

I've also noticed that when I find a Med Gull there's often another one close to but not next to it. Is that just some artefact of watching, that having found one you tend to watch that one and notice surrounding birds more?

Here's a picture from Ferrybridge last Saturday in the murk.