Waders

species: 
Black-tailed Godwit
scientific name: 
Limosa limosa
notes: 

Browse the ISWG register, but before read "How to use the register".

detailed information on :
Illustrated Key for Black-tailed Godwit cr-schemes.
https://www.rug.nl/research/gelifes/ceg/_pdf/btgodwit_key_v6.2l.pdf

colour-ring type: 
Flag : combination of uncoded flag and legring(s).
Images: