L. f. intermedius V0SE October 14 2010, Westkapelle, the Netherlands.
Ringed 1cy intermedius , ringed in Denmark. Colonies in Denmark hold birds with broad spectrum of upper-part grey tone, according to Barth's findings in the 60's and 70's: HERE & HERE.
Few us replaced. US: 1-25%, LS: 0%, TOT SCAPS: 1-25%. All visible wing-coverts and tertials juvenile.
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