Common Kestrel

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

note 1 : starting letter A and used codes AAA ... ABY.

note 2 : from 2018 onwards : starting letter B.

note 3 : from 2020 onwards: starting letter C.

note 4 :

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

note 1 : this serie is used by end-2016.

note 2 : 

Black ring with a white three alpha code, starting letter X.

note 1 : birds ringed in the North-Vienna area, from September 2012 till March 2013.
note 2 : used codes are XRA-XRZ.

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

note 1 : birds ringed in the UK, county Shropshire.

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

note 1 : birds ringed in the UK, county Pembrokeshire.

note 2 : 

Red ring with a white four alpha-numeric code (letter "H" and 3 letters/numbers).

note 1 :

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

note 1 : used letters are : A, E, G, J, K, L, N, R, M, T, U, V, Y, W, Z.

note 2 : used combinations are : letter-number-number ; letter-letter-number ; number-letter-letter ; number-letter-number; number-number-letter, letter-number-letter

note 3 : more then 4000 birds already ringed.

note 4 :

Wingtag (on both wings) with a 2 alpha-numeric code.

note 1 : used colours are red, white or yellow.

note 2 : the tag has been attached between the secondaries and tertials or between the first-third secondaries.

note 3 : birds were tagged at the autumn migration '98 in southern (Chokpak Pass, foothills of the Anarchay mountain) or eastern (Sugaty valley, Zaisan-hollow) of Kazachstan.

note 4 : 1 bird has been tagged.

White ring with a black three alpha-numeric code.

note 1 : also a project with white (and black) ring and a two alpha-numeric coes exisist.

Combination of c-rings.

note 1 : the project started in 1977 till 1981, so probably no birds alive anymore.

note 2 : used colours are white, red, green and others.