Finland.

Gulls

notes: 

Black ring with a white four alpha-numeric code, starting letter 'C'.

note 1 : up to 2014, a total of 802 rings were delivered 1997-2013.

note 2 : there can exist small check marks in the code (like dots between characters), inform them also.

note 3 :

Skuas

species: 
notes: 

White ring with a black four alpha-numeric code, starting letter "C".

note 1 : up to 2014, a total of 177 rings were delivered since 2008-2011.

note 2 :

Geese

notes: 

White ring with a black tho alpha code (starting letter "F").

note 1 : birds ringed during 2008.

Falcons

species: 
notes: 

White ring with a black four alpha-numeric code (first letter C) and metal ring.

note 1 : up to 2014, total 1253 rings delivered during 2008-2014.

note 2 :

Gulls

species: 
notes: 

Orange ring with a black 5 alpha-numeric code (starting letter 'C').

note 1 : Up to 2014, a total 547 of rings are delivered 2001-2004.

note 2 :

Gulls

species: 
notes: 

Yellow ring with a black 5 alpha-numeric (starting letter 'K')

note 1 : KJxx or KJxxx  (where x is number or letter).
note 2 : 300 birds ringed in Russian Karelia during 2001-2007, most without metal ring.

Gulls

species: 
notes: 

White ring with black 5 alpha-numeric code, starting letter 'C'.

note 1 : up to 2014, a total of 7452 rings were delivered since 1995-2012.

note 2 :

Gulls

notes: 

Dark-green with a white four alpha-numeric code, starting letter 'C'.  

note 1 : up to 2014, a total of 1365 ring werd delieverd during 1995-1998.

note 2 :

Gulls

notes: 

Black ring with a white four alpha-numeric code, starting letter 'C.

note 1 : up to 2014, a total of 299 rings were delivered since 1997.

note 2 :

Gulls

notes: 

White ring with a black four alpha-numeric code, starting letter 'C'.

note 1 : up to 2014, a total of 2562 rings were delivered since 1998-2000.

note 2 :

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