Herring Gull

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 :

Blue ring with a white 3 alpha-numeric code (number, followed by 2 letters) (on left tarsus) and metal ring (on right tarsus).

note 1 : first birds of study were ringed as pulli on east coast of Ireland during Summer 2009.

note 2 :

Dark-blue ring with white letter Y (on left tarsus) and metal ring (on right tarsus .

note 1 : a project on Herring and Lesser Black-backed Gulls that have been treated for botulism.

note 2 : an average of 35 birds per year is estimated, but during 2000 some 64 birds were released.

Black ring with a white 3 numeric code (on left tarsus) and metal ring (on right tarsus).
Black ring with a 3 numeric code (on right tarsus).

note 1: used code is for 1995 :001-060 ; for 1996 :061-106 ; for 1997 :107-131 ; for 1998 :132-153 ; 1999 :154-197 ; 2000 : 200-266 ; 2001 : 269-344 ; 2002 : 345-367.

note 2 : since 2003, there was a pause in this project. During 2011 it has been picked up again with ringing in Weymouth, with the addition of pulli on the Portland Harbour Break Waters, so 127 birds ringed up to end of 2012, split between the town of Weymouth and Portland breakwater.

Black ring with white 5 alpha-numeric code (starting letter 'C').

note 1 : up to 2014, a total of 800 rings delivered 1997-2004.

note 2 :

Black ring with 3 alphanumeric code (number/letter/number).

note 1 :

Black ring with 3 alpha-numeric code.

note 1: used codes are : three letters (E, J, K, L, M, P) or numbers (00 till 99).

Black ring with a white 4 alpha-numeric code, starting letter 'C').

note 1 : Cxxx or Cxxxx (where x is a number or letter).

note 2 : up to 2014, a total of 2780 rings delivered since 1997-2000.

note 3 :

Black ring with white 4 alpha-numeric code (starting letter 'S') (on tarsus).

note 1 : used codes and contacts are :
S201-S300 : Iļja Boiko : e-mail : boich87@inbox.lv
S301-S400 : Dmitrijs Boiko : e-mail : dmitrijs.boiko@gmail.com
S401-S500 : Aigars Kalvāns : e-mail : aigars.kalvans@vmd.gov.lv

Black ring with white four alpha-numeric code (letter J and 4 numbers and/or letters).

note 1 : birds are ringed in South-Norway.