Gulls

species: 
Yellow-legged Gull
scientific name: 
Larus michahellis
notes: 

Black ring with a white four alpha-numeric code :
​*starting letter 'F' and three numbers
OR
* starting letter 'F' and two numbers and one letter.

note 1 : the colour ring is always on left tarsus, with a metal ring on the right tarsus.

note 2 : all birds are from RIAS, a Wildlife rehabilitation and investigation centre in the south of Portugal.

note 3 : this project is for Larus fuscus and Larus michahellis, Started in December 2010 and ended in 2019

note 4 : Codes used: F000-F999, F00A-F99A, F00B-F99B, F00C-F99C, F00D-F99D and F00E-F99E

note 5 :

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).
colour-ring position (of the c-ring): 
Tarsus left.
countries where ringed: 
Portugal.
First letter/number (of the c-ring): 
F