Herring Gull

White ring with a 2 alpha code.

note 1 : rings are placed above the knee (on the tibia) for better observation results in the colony (high vegetation) and on rubbish-dumps. All other colours (with vertical placed codes) above the knee are also part of this project.

note 2 : In some series is an additional plain marker present at the other tibia, this marker is part of the combination.

note 3 :

Combination of two coded legrings, one on each tibia with a letter or number.

note 1 : rings are placed above the knee (on the tibia) for better observation results in the colony (high vegetation) and on rubbish-dumps. All other combinations with a ring above the knee are also part of this project.

note 2 : Same codes can be used by other large gull species. If you have doubts about the species and/or code, please note the age and position of all the rings, including the metal ring.

note 3 :

Black ring with a white four alpha-numeric code, ending letter ":L (on left tarsus) and metal ring (on right tarsus).

note 1 : used codes are 001:L ~~ 999:L, 000:L

note 2 :

Yellow ring with a black four alpha-numeric code, number/number/number / ending letter ":S" (on left tarsus) and metal ring (on right tarsus).

note 1 :  

Black ring with a white four alpha-numeric code : number/number/number/colon ":"/ letter C (on left tarsus) and metal ring (on right tarsus).

note 1 :

Yellow ring with a black four alpha-numeric code, number/letter/letter/:B (on right tarsus).

note 1 : letter "B" is the scheme marker.

note 2 :

Orange ring with a black for alpha-numeric code : three numbers followed by ":C" (on left tarsus) and metal ring (on right tarsus).

note 1 : to be read from bottom to top ":C".

note 2 : used codes are : 001:C, 002:C ~~ 999:C, 000:C.

note 3 :

Orange ring with a black four alpha-numeric code, last letter ":C" (on left tarsus) and metal ring (on right tarsus).

note 1 : used codes are : 001:C, 002:C ~~ 999:C, 000:C.

note 2 :

Red ring with a white four alpha-numeric code : starting letter 'K' followed by three numbers.

note 1 : used codes are :
K701-800 (1999)
K801-900 (2000)
K901-000 (2001-2002)
KA01-00 (2001-2003 )
KH01-00 (2003-2004)
KE01-00 (2003-2006)
KN01-KN00 (2006-2008)
KYxx, where “x” is number or letter (since 2020)

note 2 : birds were ringed mainly by Nikolai Yakovets up to 2008.

note 3 : rings could be used on L. cachinnans, L. argentatus, L. fuscus , L. michahellis and hybrids between these four species.

note 4 : both adults and chicks are ringing in breeding colonies.

note 5 : there are quite many hybrids, not always possible to identify in the field, so please take a digit photo if possible.

note 6 :

Dark-blue ring with white four-alpha-numeric code.

note 1 : used code : 1 letter followed by 3 numbers with the first letter C, scheme identifier (for Caldey). The letter C will be followed by a colon (C:)

note 2 : used codes are : C:001, C:002 ~~ C:999, C:000.

note 3 :