Lesser Black-backed Gull

Black ring with a white three alpha-numeric code : n.xn or nxn, where n is a number and x a letter. (the '.' = dot -if present- is a check character)

note 1 : birds ringed on Guernsey.

note 2 : the dot can be in a high, mid or low point on the ring. The colour rings are usually on the right tarsus, with a metal ring on the left tarsus.

note 3 : details of all my gull colour ring projects are available on the web site. All birds are ringed in the Bailiwick of Guernsey.

note 4 : Annual Reports are available on the Guernsey Gulls web site (www.guernseygulls.co.uk) and also on the Guernsey Gulls Blogspot (www.guernseygulls.blogspot.com).
Check also : http://www.paulveron.com/2013%20GuernseyGulls%20Annual%20Report.html.

note 5 : 

Light-green / lime ring with a black two alpha code.

note 1 : used codes are with a ":" or a "+" between the two letters.

note 2 :

Pale-blue ring with a black two alpha code.

note 1 : used codes are with a ":" or a "+" between the two letters.

note 2 :

Black ring with a white two alpha code.
Black ring with a yellow two alpha code.

note 1 : used codes are with a ":" or a "+" or "=" between the two letters.

note 2 :

White ring with a black two alpha code.
White ring with a blue two alpha code.
White ring with a red two alpha code.
White ring with a green two alpha code.

note 1 : used codes are with a ":" or a "+" or a "=" between the two letters.

note 2 :

Blue ring with a white two alpha code.

Blue ring with an orange two alpha code.

note 1 : used codes are with a ":" or a "+" or a "=" between the two letters.

note 2 :

Orange ring with a black two alpha code.
Orange ring with a white two alpha code.
Orange ring with a green two alpha code.

note 1 : used codes are with a ":" or a "+" or "=" between the two letters.

note 2 :

Yellow ring with a black two alpha code.

note 1 : used codes are with a ":" or a "+" or "=" between the two letters.

note 2 :

Red ring with a white two alpha code.
Red ring ring with a black two alpha code.

note 1 : used codes are with a ":" or a "+" between the two letters.

note 2 :

Combination of 3 c-rings (on right leg) and white ring over metal ring (on left leg).

note 1 : the 3-ring combination has been used between 1981 and 1984 with birds ringed at Walney Island as pulli or at Plank Lane Tip, Leigh, Greater Manchester, UK, as free-flying birds.