1s Baltic gull - full set of jet black replaced primaries enables separation of Baltic gull from intermedius at at this time of year, as they follow a different moult strategy. This is the only age class where they are acceptable as vagrants. See Altenburg 2011 paper for other ID features
http://www.gull-research.org/papers/DB_2cyfuscus.pdf
Also 1 Great White Egret
Bottom two pics courtesy of Lew
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