Not a lot changes! Here is a photo of a swarm of seagulls on the Wharf in St Ives taken around the 1920s. I would say they are perhaps a little less numerous and not quite so bold here as they are now-a-days.
Also, today's visitors might not be so enthralled as to stand there gawping!
This photograph was one of many taken by Frank Lake. These were published as postcards and sold in his store in the early 1900s.