Hen Harrier

Dark-blue ring with a white three alpha-numeric code, starting letter "C" followed by two numbers (on left tarsus).

note 1 :

Orange ring with a black two alpha code.

note 1 : Czech-republic : right leg and Slovakia : left leg.

note 2 :

Black ring with a white three alpha-numeric code, starting letter "P" follwed by two numbers.

note 1 : project starts in 2024.

note 2 :

Dark-green ring with a white three alpha-numeric code (letter/number/number). 

note 1 :

Green ring with a white 2 alpha code, starting letters A, B, C, D or F (on right leg) and metal (on left leg).

note 1 : birds ringed in England.

note 2 :

Black ring with a white 3 alpha code (on left leg) and metal ring (on right leg).

note 1 : used first letters are A, B, C, D, F, H and J.

note 2 : birds have been ringed across England, Wales, Scotland and Isle of Man.

note 3 :

Black ring with a white 2 numeric code (on left leg) and metal ring (on right leg).

note 1 : birds have been ringed across England, Wales, Scotland and Isle of Man.

note 2 : birds ringed since 2014.

note 3 :

Black ring with a white 2 alpha-numeric code (on left leg) and metal ring (on right leg).

note 1 : birds have been ringed across England, Wales, Scotland and Isle of Man.

note 2 : birds ringed since 2014.

note 3 :

Red ring with a white 3 alpha-numeric code (starting with "A" or "B") (on right leg) and metal ring (on left leg).

note 1 : birds ringed in the UK, Orkney.

note 2 :

Red ring with a white 3 alpha code (starting with "A" or "B") (on right leg) and metal ring (on left leg).

note 1 : birds ringed in the UK, Orkney.

note 2 :