Gulls

species: 
Eurasian Mew Gull
scientific name: 
Larus canus
notes: 

White ring with a black 4 alpha-numeric code (starting number "2") 

note 1 : several ringers participate(d) on the project : for details and direct contact information for the project leader, please, click on the following link: 

https://app.bto.org/static/files/euring/Common_Gull_UK.pdf

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).
First letter/number (of the c-ring): 
2