Herring Gull (argentatus & argenteus)(last update: February 11, 2013) |
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Herring Gull argentatus J4743 1CY, September 26 2012, Bergen, Norway. Picture: Christian Pedersen.Black J4743, ringed as pullus in 2012 in NW Norway. Many US replaced, all LS juvenile. Coverts and tertials juvenile. |