Thursday, 6 February 2014

Two 1st winter Herring Gulls (Larus argentatus) with reduced pigmentation seen in Hirtshals Harbour

These two 2cy Herring Gull (Larus argentatus) were both photographed on April 16, 2013 in Hirtshals Harbour. As the missing primaries in left wing document, the first one was also photographed on February 9 and can be seen here as #3.

Some of these pale types can also recall birds labelled as hybrid hyperboreus x argentatus (Viking Gull), but as they lacks a clear influence from Glaucous Gull when it comes to the pattern on each feather, they are all considered to be European Herring Gulls with reduced pigmentation, but it will always be a question whether to name such as aberrant/pale end argentatus or Viking Gull-types.

#1: 16 April 2013, Hirtshals Harbour, 5 photos below

#2: 16 April 2013, Hirtshals Harbour, 1 photo below

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