3CY Lesser Black-backed Gull Blue VZ6Y with active primary moult in January – 20170105

Images of second winter / third-calendar year Lesser Black-backed Gull Blue VZ6Y showing active primary moult in January: P1 to P5 are fully grown, P6 3/4 grown, P7 is missing/growing, P8 to P10 are still second-generation. Primary moult score: 30 (5555541000).

Blue VZ6Y was ringed as a pullus in Hirsholm, Frederikshavn, Denmark in June 2015.

The images were taken at the Anza fish factory, Morocco, on 5 January 2017.