Grey Heron

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

note 1 : used numbers are : 0 - 9.

note 2 : birds ringed since 1985.

note 3 : currently in use.

note 4 :

Yellow ring with a black 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 1985.

note 3 : currently in use.

note 4 :

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

note 1 :

Orange ring with a black three alpha-numeric code, starting letter "E".

note 1 : this projects runs since 2015.

note 2 :

Yellow ring with a black four numeric code (on left tarsus) and metal ring (on right tarsus).

note 1 :

Yellow ring with a black four alpha-numeric code, starting letter "P" (on left leg) and metal ring (on right leg).

note 1 :  

Dark Green ring with a white two alpha-numeric code (on left tibia) and a metal ring (on right tarsus).

note 1 : birds ringed in the UK, Lincolnshire.

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

note 1 : birds ringed in the UK, county York.

note 2 : digits used 01-99.

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

note 1 : birds ringed in the UK, Nottinghamshire.

note 2 : 

Red ring with a white 3 alpha-code (first letter "S") (on right tibia) and metal ring (on left tibia).

note 1 : birds ringed in Slovakia.

note 2 : new used codes are : S00 - S99 (100 rings).

note 3 :