Mediterranean Gull: More white wingers turn up at BMW!
Two full adults in summer breeding plumage, full black head, red bill and notice the white under wings and wing tips on the bird flapping its wings.
A cracking gull and possibly one of my favorite gulls!
People often struggle with gull ID if so see this very good link below for tips
http://merseybirders.webs.com/gullidentificationpage.htm