Terns

species: 
Caspian Tern
scientific name: 
Hydroprogne caspia
notes: 

Yellow ring with a black three alpha-numeric code.

note 1 : in 2022 used codes are : Wxx, Xxx, Yxx and Zxx into use as well as also alpha-numeric rings starting with letters C and F (A is already in use in another project and letters not used are : B, D and E.
In 2025 theseletters are used : J, K, L, U, V.

used combinations are : 
C / letter / number
C / number / letter
C / number / number
F / letter / number
F / number / letter
F / number / number

note 2 : y = yellow ; x = letter ; n = number.
y- Jxn, y- Jnx, y- Jnn,  y- Kxn, y- Knx, y- Knn, y- Lxn, y- Lnx, y- Lnn, y- Uxn, y- Unx, y- Unn,  y- Vxn, y- Vnx, y- Vnn.

note 3 : 

 

email sighting submit: 
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Yellow [Y]
colour-ring code (of the c-ring): 
Three alpha-numeric code (3 letters/numbers).
countries where ringed: 
Finland.