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lbbg 1cy May lbbg 2cy Jan-Febr lbbg 3cy Jan-April lbbg sub-ad Jan-April lbbg ad January |
L. f. graellsii H.746 September 12 2009, Westkapelle, the Netherlands. Ringed 2cy Larus fuscus from N Germany, overlap zone of graellsii "Dutch intergrade" and intermedius. |