greetings. first post. possible nonbreeding adult ring-billed gull: lake Erie, western new york state; late june; late afternoon / early evening (/prevening). observed in water; flying short distances; walking and laying on dry land (grass); on rocky shore; walking on pavement. body mostly white, some (grey / grey-brown?) mottling on head and neck area; wings mostly grey; tail end mostly dark/black; black/dark eyes; grey(?) feet. information regarding identification of species / subspecies, 'gender', approximate age, all much appreciated.