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Thursday, 1 July 2021

Appleford Gravel Pit: 1 July

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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