Just down the coast from me in Fleetwood the gulls are notoriously aggressive (as are the locals 
) Regularly there are stories in the local rag regarding attacks on people usually from Herring Gulls. Not had any issues in Blackpool? They tend to take a bit of interest and when you fly up they get bored. No doubt off to look for some chips instead!
Rumour has it that seagulls and Red Kites are drone enemies no.1 & no.2
I have to admit I was in Herne Bay and the seagulls in flocks went for my Mini 2, I had to race it up hight to the permiited 120mt and then circuled way back to about half a mile behind them to land back to safey from behind me. No chance of Vlos at the time, but he-ho!
That was a hairy moment. 