Little Tern

Yellow ring with a black 3 alpha-numeric code (on right leg) and metal ring (on left leg).

note 1 : used codes are : E00-E99 ; E1A-E9Z ; EA1-EZ9 ; EAA-EZZ.

note 2 : birds ringed at Chesil Beach, Weymouth, Dorset, UK.

note 3 : 

Dark-green ring with a white three alpha code (on one leg) and metal ring (on other leg).

note 1 :

Dark-green ring with a white three alpha-numeric code (on one leg) and metal ring (on other leg).

note 1 : used codes : letter/number/number or letter/letter/number or letter/number/letter.

note 2 :

Combination of : 
* yellow ring with a black 3 alpha-numeric code (on left leg)
* metal ring (on right leg).

note 1 : used codes are : "C"+ number + letter.

note 2 : birds ringed in Cumbria, UK.

note 3 : 

Dark-green ring with a white three alpha code :
starting letter ‘H’ or 'J' or ‘N’ or 'S' or 'U' or ‘X’ or ‘Y’ or ‘Z’.

note 1 : Only starting letter "N", "S" and “X” can be submitted to https://submit.cr-birding.org/projects/65/

note 2 : The NW European Little Tern Project is a multinational cooperation of Little Tern ringers from the national ringing schemes of Denmark (Copenhagen Bird Ringing Centre), Germany (Vogelwarte Helgoland and Vogelwarte Hiddensee), the Netherlands (Vogeltrekstation Arnhem), Lithuania (Lithuanian Bird Ringing Centre) and Africa (South African Bird Ringing Unit, SAFRING), lead and coordinated by Aarhus University, Denmark. The project uses a combination of metal rings from the respective ringing scheme on one tarsus and a dark-green 3-digit coded colour-ring on the other tarsus.

note 3 : From 2017 to 2024 (incl.) a total of 1.783 adults and 749 larger chicks have been colour-ringed in various breeding colonies across Denmark, Germany, Lithuania and the Netherlands as well as in the wintering area in Senegal.

note 4 : General position of the colour-ring is left tarsus (birds ringed in Denmark) or right tarsus (birds ringed in Germany, Lithuania, the Netherlands and Senegal). However, foreign ringed Little Terns controlled and additionally colour-ringed by this project may have the colour-ring on the opposite tarsus depending on the position of their metal ring.

Dark-green ring with a white three alpha-numeric code :
starting letter ‘H’ or 'J' or ‘N’ or 'S' or 'U' or 'X' or ‘Y’ or ‘Z’ followed by number and letter
OR
starting letter ‘H’ or 'J' or ‘N’ or 'S' or 'U' or 'X' or ‘Y’ or ‘Z’ followed by two numbers
OR
starting letter ‘H’ or 'J' or ‘N’ or 'S' or 'U' or 'X' or ‘Y’ or ‘Z’ followed by letter and number

note 1 : Only starting letter "N", "S" and “X” can be submitted to https://submit.cr-birding.org/projects/65/

note 2 : The NW European Little Tern Project is a multinational cooperation of Little Tern ringers from the national ringing schemes of Denmark (Copenhagen Bird Ringing Centre), Germany (Vogelwarte Helgoland and Vogelwarte Hiddensee), the Netherlands (Vogeltrekstation Arnhem), Lithuania (Lithuanian Bird Ringing Centre) and Africa (South African Bird Ringing Unit, SAFRING), lead and coordinated by Aarhus University, Denmark. The project uses a combination of metal rings from the respective ringing scheme on one tarsus and a dark-green 3-digit coded colour-ring on the other tarsus.

note 3 : From 2017 to 2024 (incl.) a total of 1.783 adults and 749 larger chicks have been colour-ringed in various breeding colonies across Denmark, Germany, Lithuania and the Netherlands as well as in the wintering area in Senegal.

note 4 : General position of the colour-ring is left tarsus (birds ringed in Denmark) or right tarsus (birds ringed in Germany, Lithuania, the Netherlands and Senegal). However, foreign ringed Little Terns controlled and additionally colour-ringed by this project may have the colour-ring on the opposite tarsus depending on the position of their metal ring.

Green ring with a white three alpha-numeric code : starting letter "I". 

note 1 : birds ringed at two sites on the Irish East coast (all pulli so far, no adults) :
1) Kilcoole, County Wicklow with the darvic on left tarsus (and national metal on right).
2) Baltray, County Louth with the darvic on the right tarsus (and metal left)

note 2 : 

Green ring with a white three alpha code : starting letter "I". 

note 1 : birds ringed at two sites on the Irish East coast (all pulli so far, no adults) :
1) Kilcoole, County Wicklow with the darvic on left tarsus (and national metal on right).
2) Baltray, County Louth with the darvic on the right tarsus (and metal left)

note 2 : 

White ring with a black three alpha-numeric code : starting letter 'P'.

note 1 :

Yellow ring with a black 3 alpha-numeric code (on right leg) and metal ring (on left leg).

note 1 : used first letters are : "X", "Z" , "U", "P" and "T".

note 2 : birds ringed at various sites in the UK, may also include Isle of Man depending on demand.

note 3 :