Common Kestrel

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

note 1 : most birds are ringed in 2010-2015 in Friesland and Groningen, The Netherlands.

note 2 : used letters are : A, C, E, H, J, K, L, N, P, S, T, V, X, Y, Z.

note 3 : sometimes a green two alpha code ring is added above the metal ring.

note 4 :

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

note 1 : used colours are : light-blue, yellow, grey, violet, dark-green.   

note 2 : during 2015 23 birds were ringed. 

note 3 :  

Combination of two c-rings (on right leg) and metal ring (on left leg).

note 1 : used colours in a two cr-combination are : dark-green, orange, black, white, yellow, red, violet.    

note 2 : during 2014 12 birds were ringed. 

note 3 :  

Orange ring with a black two alpha-code (on one leg) and metal ring (on the other leg).

note 1 : this is a local project (Viennese Kestrel Project) and only used in 2015.

note 2 : only nestlings are colour ringed in this population.

note 3 : 

White 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 1987.

note 3 :

White ring with a black three alpha 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 : birds ringed since 1987.

note 3 :

Orange 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 2015.

note 3 :

Orange ring with a black three alpha 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 : birds ringed since 2015.

note 3 :

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

note 1 : used numbers are : 0 - 9.

note 2 : birds ringed since 2007.

note 3 :

Green ring with a white three alpha 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 : birds ringed since 2007.

note 3 :