Peregrine Falcon

Dark-blue ring with a two alpha code (on right leg) and metal ring (on left leg).

note 1 : birds ringed during 2006-2007.

note 2 : 

Red ring with a two alpha-numeric code (on right leg) and metal ring (on left leg).

note 1 : birds ringed during 2006-2015.

note 2 : code can be letter/number OR number/letter.

note 3 :

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

note 1 : birds ringed during 2006-2015.

note 2 : 

Red ring with a two alpha code (on right leg) and metal ring (on left leg).

note 1 : birds ringed during 2006-2015.

note 2 : 
 

Grey/silver ring with a black two alpha-numeric code, separated by a vertical bar.

note 1 : 

Orange ring with a white two alpha-numeric code (on left tarsus) and metal ring (on right tarsus).

note 1 : used code, vertically placed is and for female is : number/letter : 1A ... 9Z.

note 2 : used code, vertically placed is and for male is : letter/number : A1 ... Z9.

note 3 :

Yellow ring with a black three numeric code (on left tarsus) and metal ring (on right leg).

note 1 : used numbers are : 0 - 9.

note 2 : birds ringed since 2010.

note 3 :

Yellow ring with a black three alpha-numeric code (on left tarsus) and metal ring (on right leg).

note 1 : used letters are A, C, F, H, J, L, M, N, P, R, T, U, V, W and X.

note 2 : used numbers are 0 - 9.

note 3 : birds ringed since 2010.

note 4 : 

Red ring with a white two alpha-numeric code (number/letter).

note 1 : birds ringed Madrid, Spain.

note 2 :  

Yellow ring with a black two alpha code.

note 1: nestlings ringed in west Cornwall, UK.