Lesser Black-backed Gull (graellsii & intermedius)(last update: |
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lbbg 1cy May lbbg 2cy January lbbg 3cy Jan-April lbbg sub-ad Jan-April lbbg adult January |
L. f. intermedius JZZ7 2cy-3cy-4cy, 2010-2012. Pictures Christian Pedersen, Maarten van Kleinwee & Theo Muusse. Ringed 2cy intermedius, ringed in Vest-Agder, S Norway. CR-Code Black ring with white code: JZZ7 LBNW(JZZ7);RBM below: JZZ7 August 11 2010, Barneveld, the Netherlands. Pictures Maarten van Kleinwee & Theo Muusse. Complete moult: P1-P5 new, P6 growing, P8-P10 still juvenile. Moult in outer secondaries just started. Tail completely 2nd gen, maybe already replaced at wintering grounds last spring. Note also old 2nd gen greater coverts. below: 3cy JZZ7 July 29 2011, Barneveld, the Netherlands. Picture: Maarten van Kleinwee. P2 fully grown, P3 growing, P5-P10 old. Compare to 2cy in summer, and note that all greater coverts have been replaced again, and a subsequent moult in inner greater coverts and upper tertials. below: 3cy JZZ7 August 12 2011, Barneveld, the Netherlands. Picture: Maarten van Kleinwee. P7-P10 old. below: 3cy JZZ7 September 09 2011, Barneveld, the Netherlands. Picture: Maarten van Kleinwee. P5/P8, P6 almost fully grown. S1 growing. Complete tail still present here. below: 4cy JZZ7 November 21 2012, Anza - Agadir, Morocco. Picture Christian Pedersen. P8/P10. P9 growing, small moult gap. Tiny mirror on 3rd gen P10. |