April 5, 2016 and Dave Adrien took this picture at Revere Beach, MA. 3F3 was banded as a chick of undetermined sex in July 2009 on Appledore Island and was never reported since banding until February 2016 at Revere Beach and now ( Apr 5) again at Revere Beach with a handsome ‘boy friend'(?).
It appears 3F3 is probably a female. Dr. David Bonter at Cornell is having a student work on positive sex determination of ‘Appledore’ gulls based on DNA samples taken at banding.