Osprey

Black ring with a 4 alpha-numeric code :
code in two lines : letter 1 above letter 2 and numeric 1 above numeric 2.

note 1 : note from March 2019 use : beringungszentrale@lung.mv-regierung.de

note 2 :

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

note 1 : birds ringed since 2012 and 2013.

note 2 : used codes are : Cxx, Fxx, Jxx, Kxx, Lxx or in detail : CKC-FFT and from 2014 onwards : JAA, JAC, ...

note 3 : from 2015 onwards (till 2019) another project is joining this one, f.i. birds ringing in western Finland.

note 4 : up to 2014, a total of 764 rings were delivered since 2012-2014.

note 5 :

Yellow ring with a black two alpha code (on left leg).

note 1 : up to 2014, a total of 305 rings were delivered since 2008-2011.

note 2 :   

White ring with a black three alpha code.

note 1 : birds ringed during 2012 in Morocco in  the Al-Hoceima National Park.

Dark-green ring with a white three alpha code, first letter "C".

note 1 : birds ringed during 2012 on Corsica.

Dark-green ring with a white three alpha-numeric code. 

note 1 : used codes are A01, A02, ... A33, ...

note 2 : birds ringed during 2010 and 2011.

One c-ring (metal coloured) with a two alpha code (upright letters in a diagonal position, the first one being the upper letter, the second one being the lower letter) (on tarsus) and metal ring (on other tarsus).

note 1 : used codes are : A/A, A/B, A/C, ...  

note 2 : it's important to report on which tarsus the coded colour-ring is.

note 3 : unfortunately some colours (mainly red rings and the black letters of yellow rings) have faded, so colour might be impossible to detect.

note 4 : from March 2019 onwards do use : beringungszentrale@lung.mv-regierung.de

note 5 :

White ring with a three alpha-numeric code :
one upright letter and two alpha-numerics turned left
OR
one upright digit and two letters turned left, the latter two to be read upwards and
metal ring on other leg.

note 1 : used codes are : A/01, A/02, 1/AA, 1/AC ...

note 2 : it's important to report on which tarsus the c-ring is.

note 3 : from March 2019 onwards use : beringungszentrale@lung.mv-regierung.de

note 4 :

Black ring with a three alpha-numeric code :
one upright letter and two digits turned left
OR
one upright digit and two letters turned left (the latter two to be read upwards)
and metal ring on other leg.

note 1 : used codes are : A/01, A/02, 1/AA, 1/AC ...

note 2 : it's important to report on which tarsus the c-ring is.

note 3 : note from March 2019 use : beringungszentrale@lung.mv-regierung.de

note 4 :

Orange ring with a black two alpha-numeric code (number and/or letter (rarely a symbol)).

note 1 : the code is always to be read from up to down.

note 2 : it is important to note which paw holds the orange ring. Sometimes, the code is
separated in the middle by a dot or at the end of the code.

note 3 :