Lesser Black-backed Gull graellsii EZ 8CY, April 09 2012, Europoort - Maasvlakte, the Netherlands. Picture: Maarten van Kleinwee.
Tibia blue ring + black ring; blue EZ ringed as 3CY in June 2007 (HY2005) at Zele-Heikant, Belgium.
NOTE: E.Z blue has been used again, now with extra black on other tibia, ringed as beeding adult. See: EZ.
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