Osprey

White ring with a three alpha-numeric code :
one upright letter and two alpha-numerics turned left.

note 1 : used codes are : A75 - A78.

note 2 : young birds ringed during 2019 - 2022.

note 3 :

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

note 1 :

Dark-blue ring with a white three numeric code.

note 1 : it's important to note which leg holds the colour ring.

note 2 : the inscription is to be read upwards from the foot, repeated three times around the ring. it's important to note the colour of the letters/numbers as well as the colour of the ring.

note 3 : since 2007, small number of birds carry GPS satellite transmitters as well as colour rings.

note 4 :

White ring with a black three alpha-numeric code (on right tarsus).

note 1 : used codes are : two numbers followed by a letter.

note 2 : between the numbers, a dot "." is placed.

note 3 : used codes are : 00-99 for F, H, J, and K and 00-10 for N.

note 4 :

Orange ring with a black two numeric code, some ending by a dot.

note 1 :

Orange ring with a black 3 alpha-numeric code, starting letter « T »followed by two numbers (90° turned) and a metal ring on the over leg.

note 1 : Translocation project and taking place in « Réserve Naturelle du Marais d’Orx (SW France) from 2018 to 2021.
Uniquely in 2018, birds have been ringed with 2 orange code PVC rings (one on each leg) but no metal ring.

note 2 : 

Red ring with a white three alpha code, starting letter "P".

note 1 : 

Dark-blue ring with a white three alpha-numeric code, starting letter "F" followed by two numbers.

note 1 :

Dark-green with a white three alpha-numeric code : vertical P and two horizontal digits.

note 1 : birds ringed within the Cape Verdean ringing programme.

note 2 : 

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

note 1 : used codes are : letter above number ; A0-A9, ... Y0-Y9.

note 2 :