Osprey

Dark blue ring with a white three alpha-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 : 6E1, 6E2, 6E3, 6E4, 6E5, 6E6, 6E7, 6E8, 6E9 are used in Ireland on Norwegian birds which are released.

note 5 :

Dark-blue ring with a white two alpha-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.

White ring with a black two alpha-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.

Black ring with a white two alpha-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.
 

Red ring with white three numeric code (for pulli and adults).

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

note 2 :

Red ring with white three alpha-numeric code (letter/number/number OR number/letter/number) (for pulli).

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

note 2 : codes on the red ring to be read as : white letter, two numbers turned 90° to be read from bottom to top.

note 3 :

Black ring with a white two alpha-numeric code (number and letter) (for adult).

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

note 2 : some adult birds has also red or green colour ring without code above the colour or metal ring.

note 3 :