Osprey

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

note 1 : used codes are : letter-number-letter (e.g. A1A)

note 2 : used letters are : A, C, F, H, J, K, L, M, N, P, R, S, T, U, V, W, X, Y, Z.

note 3 : first letter do not include U or Z.

note 4 : rings used from 2023 onwards.

note 5 :

Yellow ring with a black three alpha-numeric code, starting letter "U".

note 1 : birds ringed in Basque Country.

note 2 :

Yellow ring with a black 3 alpha-numeric code, starting letter 'Z'.

note 1 : since 2022.

note 2 :

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 :

Two orange rings (one on each leg) with a black three alpa-numeric code, starting letter "T" followed by two numbers (90° turned) and metal ring.

note 1 : this is a translocation project and taking place in the Réserve Naturelle National du Marais d’Orx, a protected wetland in southwest of France.

note 2 : in 2018, birds have been ringed with two orange coded PVC rings (one on each leg) but no metal ring. In 2019 (same for 2020 and 2021), birds have been ringed with one orange coded PVC ring and a metal ring.

note 3 :

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

note 1 :