Gulls

species: 
Black-headed Gull
scientific name: 
Chroicocephalus ridibundus
EURING code: 
05820
notes: 

Yellow ring with a black four alpha-numeric code (first letter N).

note 1 : used codes are N100-N599.

note 2 : birds are ringed on the local rubbish dump of Salamanca (W.Spain).

note 3 :

Images: 
email sighting submit: 
snailmail sighting submit: 
Vicente López Alcázar,
colour-ring type: 
Legring : one, coded.
colour-ring colour: 
Yellow [Y]
colour-ring code: 
Four alpha-numeric code (4 letters/numbers).
countries where ringed: 
Spain.
First letter: 
N