Influx of Black headed gulls in ucd today.
I'm guessing 200+ on the footie fields as I drove in at 8.50am.
By lunchtime they had dispersed into various pockets all over campus, I kept my eyes peeled for the 99.9% adult med gull I saw last week, but couldn't spot it.
What I did see though, walking around with 30 ish other BH gulls was a 2nd summer moulting into 2nd winter plumage Med Gull.
Try telling someone that quickly!
ucd species list upto 47.