Terns

species: 
Common Tern
scientific name: 
Sterna hirundo
notes: 

Dark-blue ring with a white three alpha code, starting letter 'L or H' (on one leg) and metal ring (on other leg). 

note 1 : this project started in Northeast Germany in 2012. Until 2016 it was carried through with yellow rings with first letter 'F'.

note 2 : codes with second letter U, V, X and Z were used in southern part of East Germany (near city of Leipzig) in the years 2017 and 2018.

note 3 : from 2016, blue rings with the first letter being “H” have been used. Hence: blue “H” has been used from 2016 to 2019.

note 4 : 

email sighting submit: 
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Dark Blue [B]
colour-ring code (of the c-ring): 
Three alpha code (3 letters).
countries where ringed: 
Germany.
First letter/number (of the c-ring): 
L or H