Black-legged Kittiwake

Orange ring with black 3 alpha code (on left leg) and metal ring (on right leg).

note 1 : code prefix "X".

note 2 : birds ringed on Inchkeith Island, Firth of Forth, Edinburgh, Scotland.

note 3 : 

Orange ring with black 3 alpha-numeric code (on left leg) and metal ring (on right leg).

note 1 : code prefix "X".

note 2 : birds ringed on Inchkeith Island, Firth of Forth, Edinburgh, Scotland.

note 3: 

Orange ring with a black two alpha code (on one leg) and metal ring (on otehr leg).

note 1 :

Yellow ring with a black three alpha-numeric code (on one leg) and metal ring (on other leg).

note 1 : used codes are letter "X"/letter/number or letter "X"/number/letter or letter "X"/number/number.

note 2 :

Yellow ring with a black three alpha code (on one leg) and metal ring (on other leg).

note 1 : used codes are XAA-XZZ.

note 2 : 

(dark) Green ring with a white 3 alpha-numeric code (on right leg) and metal ring (on left leg).

note 1 : used on adult breeding birds and chicks from 2015.

note 2 : c-ring is 15mm. high. 

note 3 : used codes are 2AA-2ZZ. 

note 4 : 

Dark-green ring with a white three alpha-numeric code : letter/letter/number.

note 1 :  

Orange ring with black one numeric code (on right leg) and metal ring (on left leg).

note 1 : geolocator attached to colour ring.

note 2 : birds ringed in Lowestoft, Suffolk, UK.

note 3 : this is an urban colony on man made sites.

note 4 : project started in 2010.

note 5 : some birds ringed with orange ring with 2 or 3 alpha-numeric code.

Blue ring with a white three alpha-numeric code (on left tarsus) and metal ring (on right tarsus).

note 1 :

Blue ring with a white three alpha code (on left tarsus) and metal ring (on right tarsus).

note 1 :