Gulls

species:

Black-headed Gull

scientific name:

Chroicocephalus ridibundus

notes:

Black ring with a white four alpha-numeric code.

note 1 : starting letter "A" followed by a three alpha-numeric code.

note 2 : three alpha-numeric code can be 2 numbers and 1 letter OR number/letter'x' /number.

note 3 : letter 'x' can be S, P, T, K, M, J, H.

note 4 : used codes are : A01A-A00A ; A01C-A00C ; A01E-A00E ; A01H-A00H ; A01J-A00J ; A01K-A00K ; A01L-A00L ; A01M-A00M ; A01N-A00N ; A01P-A00P.

note 5 : used codes are : A0A1-A0A0 ; A0C1-A0C0 ; A0E1-A0E0 ; A0L1-A0L0 ; A01R-A00R ; A01S-A00S ; A01T-A00T ; A01U-A00U ; A01V-A00V ; A01X-A00X ; A01Y-A00Y.

note 6 : used codes are : A0H0-A9H9, A0J0-A9J9, A0K0-A9K9, A0M0-A9M9, A0N0-A9N9, A0P0-A9P9, A0R0-A9R9, A0S0-A9S9, A0T0-A9T9.

email sighting submit:

colour-ring type:

Legring : one, coded.

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

Black (Niger) [N]

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

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

countries where ringed:

Germany.

Images:

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