Lesser Black-backed Gull 2CY, May 29 2017, Heemskerk, the Netherlands.
Bird is not ringed, no provenance on origin. Intermedius-type 2CY bird.
Post-juvenile moult include many inner wing-coverts and tertials. Also several rectrices replaced.
Complete moult started: P1-P2 missing.
![](../lbbgoct/images/mei20172cy/twit2cy_38A4572.jpg)
![](../lbbgoct/images/mei20172cy/twit2cy_38A4573.jpg)
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