Grey Heron

Yellow ring with a black two alpha-numeric code (on right tibia) and metal ring (on right tarsus).

note 1 : code used : letter/number.

note 2 : birds ringed in the UK, county York.

note 3 : 

Orange ring with a black three alpha-numeric code (left tibia) and metal ring (right tarsus).

note 1 : codes used: L00-L99.

note 2 : birds ringed in Dublin Zoo and Tymon Park.

note 3 :

Orange ring with a black three alpha-numeric code (left tibia) and metal ring (right tarsus).

note 1 : codes used: K00-K99.

note 2 : birds ringed in Dublin Zoo and Tymon Park.

note 3 :

Dark-blue ring with a white three alpha code, starting leter "A".

note 1 : 

Dark-blue ring with a white three alpha-numeric code, starting leter "A".

note 1 : used codes are :
letter "A" / number / number
OR
letter "A" / letter / number
OR
letter "A" / number / letter

note 2 : 

Orange ring with a black three alpha-numeric code, starting letter "B" (B/number/number) (on left tibia) and metal ring (on tarsus).

note 1 : birds ringed in Wales and Herefordshire.

note 2 : 

Dark-blue ring with a white two alpha-numeric code (on left tibia) and an orange ring (on right tibia).   

note 1 : birds ringed in the UK, Nottinghamshire.

note 2 : 

Dark-blue ring with a white three alpha-numeric code, starting letter "C" followed by letter/number (on right tibia) and metal ring (on left tibia).

note 1 :

Black ring with a white three numeric code (on left tibia) and metal ring (on right leg).

note 1 : used numbers are : 0 - 9.

note 2 : birds ringed since 2015.

note 3 :

Black ring with a white three alpha code (on left tibia) and metal ring (on right leg).

note 1 : used letters are: A, C, F, H, J, L, M, N, P, R, T, U, V, W and X.

note 2 : birds ringed since 2015.

note 3 :