Common Gulls (Larus canus canus plus heinei):

: seven first-cycles from the United Kingdom in February - added 01/02/14.
: 1st-basic from the United Kingdom in January.
: 1st-basics from the Netherlands in February - added 01/20/01.
: 1st-basics from the Netherlands in February - added 01/20/01
: 1st-basic from Newfoundland in December - added 01/20/01
: eight second-cycles from the United Kingdom in February - added 01/02/14.
: second-cycle from the United Kingdom in January.
: second-cycle from Newfoundland in January - added 01/20/01
: second-cycle an unusual "retarded" individual from Newfoundland in March - added 03/20/05
: nine definitive-cycles from the United Kingdom in February - added 01/02/14.
: definitive-cycle - an unusual Dutch bird from December - February showing some Mew-like features - added 6/15/00
: a number definitive-cycles from the Netherlands in January, February, and October- added 6/15/00
: definitive-cycles from the Netherlands breeding population in June - added 01/20/01
: definitive-cycles of the form heinei, from the Netherlands in December and January - added 01/20/01
: A definitive-cycle with pale eye and reduced black in P8, from the Netherlands in October- added 03/04/02