Gulls

species:

Black-headed Gull

scientific name:

Chroicocephalus ridibundus

notes:

Dark-green ring with a white four alpha-numeric code (starting letter "N" followed by 3 digits alpha-numeric).

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

note 2 : used numbers are 0-9.

note 3 : birds ringed since 2022.

note 4 :

website sighting submit:

email sighting submit:

website information:

colour-ring type:

Legring : one, coded.

colour-ring colour (of the c-ring):

Dark Green [G]

colour-ring code (of the c-ring):

Four alpha-numeric code (4 letters/numbers).

countries where ringed:

Spain.

First letter/number (of the c-ring):