Common Kestrel

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

note 1 : used codes are : A1-I1.

note 2 : birds ringed in the westpart of Berlin.

note 3 : project started without coordination and thus overlap with UK-project.

note 4 :

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

note 1 : used codes are : A1-H5.

note 2 : birds ringed in the westpart of Berlin.

note 3 : project started without coordination and thus overlap with UK / Scotland project.

note 4 :

Light-green (lime) ring with black 3 alpha-numeric code (on left tarsus) and metal ring (VT Arnhem) (on right tarsus)

note 1 : this is a local project (RAS project in “groene hart” area in The Netherlands).

note 2 : nestlings and adult birds are c-ringed in this population.

note 3 : used letters are : A, C, E, H, J, K, L, N, P, S, T, U, X, Y, Z.

note 4 : used codes are : letter - letter - number OR number - letter - letter.

note 5 : project started in 2017.

note 6 : used codes : letter - letter - letter, letter - letter - number ; number - letter - letter.

note 7 : 

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

note 1 : codes used: A00-A99.

note 2 : birds ringed in North Norfolk, UK.

note 3 :

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

note 1 : used codes : starting letter "A" + Letter + Letter.

note 2 : birds ringed in Northamptonshire.

note 3 :

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

note 1 : birds ringed in the UK; county Surrey.

note 2 :

Dark Green ring with a white 2 alpha code (on left leg) and metal ring (on right leg).

note 1 : birds ringed in the UK; county Surrey.

note 2 :

Brown (umber) ring with a white three alpha-numeric code : alpha - number - number.

note 1 : used code are : A01 - Z99.

note 2 :

Blue ring with three alpha-numeric code.

note 1 : used codes are : number / letter / letter 'X' or 'W' and number / number / letter 'X' or 'W' and 'number / letter 'X' or 'W' / number' and  number / letter 'X' or 'W' / letter, without 1XF and 1WF.

note 2 : project starts in 2022.

note 3 :

Combination of :
* metal ring (on left leg).
* yellow ring with a black two alpha-numeric code (letter/number) over red ring OR blue ring since nov. 2021 OR white ring (since dec. 2023) (on right leg).

note 1 : for the future the colours black (N) and dark-green (G) will be used.

note 2 :