Gulls

species:

Caspian Gull

scientific name:

Larus cachinnans

notes:

White ring with a black four alpha-numeric code :
3 numbers followed by a colon (:) and ending letter "U") (on right tarsus) and metal ring (on left tarsus).

note 1 : used codes are 001:U - 999:U

note 2 : the ring 001:U incorrectly on the left tarsus !

note 3 : species are Larus cachinnans and Larus michahellis.

note 4 : birds are also ringing in mixed colonies. Chicks species identification is often impossible, so please digital photos are appreciated.

note 5 :

email sighting submit:

colour-ring type:

Legring : one, coded.

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

White [W]

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

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

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

Tarsus right.

countries where ringed:

Czech Republic.

Images:

Last letter (of the c-ring):