Lesser Black-backed Gull graellsii Y.CFB 2CY, May 29 - June 02 2017, Heemskerk, the Netherlands.
Data pending. Probably ringed as pullus in June 2016, at forteiland, IJmuiden, the Netherlands.
below: Lesser Black-backed Gull graellsii Y.CFB 2CY, June 02 2017, Heemskerk, the Netherlands.
Post juvenile mnoult in left wing: TT1-3 replaced, GC 2-3, MC (1?)2-8. Complete moult now started, muddying an estimation of the full extent of the post-juvenile moult.
![](../lbbgoct/images/mei20172cy/ycfb_38A5724.jpg)
![](../lbbgoct/images/mei20172cy/ycfb_38A5741.jpg)
below: Lesser Black-backed Gull graellsii Y.CFB 2CY, May 29 2017, Heemskerk, the Netherlands.
P1-P2 missing, secondaries and primaries juvenile. New tail-feathers R1. Several inner coverts replaced last winter in the post-juvenile moult.
![](../lbbgoct/images/2017mei/ycfb_38A4122.jpg)
![](../lbbgoct/images/2017mei/ycfb_38A4123.jpg)
![](../lbbgoct/images/2017mei/ycfb_38A4132.jpg)
![](../lbbgoct/images/2017mei/ycfb_38A4133.jpg)
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