Lesser Black-backed Gull (graellsii & intermedius)
(last update: May 17 2015)
lbbg 1cy May
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lbbg 1cy July
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lbbg 2cy January
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lbbg sub-ad Jan
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lbbg adult January
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Lesser Black-backed Gull 2CY, July 18 2013, Katwijk, the Netherlands.
Unringed, hence no provenance about origin, but in all respects nice match to local "Dutch intergrade" Lesser Black-backed Gull.
Bird in complete moult: P5/P8. Central GC growing, GC6-GC8 which are the last to be replaced in a common moult strategy. S1 probably still present. Some rectrices, missing and several still old juvenile.
