Lesser Black-backed Gull (graellsii & intermedius)(last update: June 25, 2012) |
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lbbg 1cy May lbbg 2cy January lbbg 3cy Jan-April lbbg sub-ad Jan-April lbbg ad January |
Lesser Black-backed Gull graellsii FH5T adult, July 20 2016, Utrecht, the Netherlands.Ring is old and over the foot. P1-P2 growing, P4-P10 old. |