Northern Gannet

Orange ring with a black two alpha-numeric code

note 1 : birds are ringed in Yorkshire.

note 2 : 

Red ring with a white three numeric code (on left leg) and metal ring (on right leg).

note 1 :

Dark-blue ring with a white two alpha code.

note 1 : birds are ringed on Sule Skerry (outer orkney island).

note 2 : 

One c-ring (on left leg) and metal ring (on right leg).

note 1 : Light-green (=Bass Rock) or dark-blue (=Fair Isle) or red (=Ailsa Craig) or yellow (=Hermaness).

note 2 : 

Red ring with a white two alpha code.

note 1 : birds are ringed on Sule Skerry (outer orkney island).

note 2 : 

Yellow ring with a black two alpha code.

note 1 : birds are ringed on Sule Skerry (outer orkney island).

note 2 : 

Yellow ring with a black three alpha-numeric code (letter 'A' / number / number).

note 1 : birds ringed on the 27th. of June in Northern Italy.

note 2 : for marking scheme info. , please refer to : stefano.volponi@isprambiente.it

note 3 :

Orange ring without a code.

note 1 : used codes are : an orange ring (no code) to attach the GPS data logger.

note 2 : 

Red ring with a white four alpha-numeric code.

note 1 : used codes are : starting letter 'S' followed by three numbers.

note 2 : birds ringed on Saltee.

note 3 : 

Dark-blue ring with a 4 alpha-numeric code.

note 1 : used codes are : blue ring with code starting with letter B *** (on Bass Rock).