Friday, 7 February 2014

Herring Gulls (Larus argentatus) with reduced pigmentation seen in Hanstholm Harbour

These three Herring Gulls (Larus argentatus) were all photographed on March 31-April 1, 2013 in Hanstholm Harbour.

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: 31 March 2013, Hanhstholm Harbour, 7 photos below





#2: 1 April 2013, Hanhstholm Harbour, 1 photo below





#3: 1 April 2013, Hanhstholm Harbour, 1 photo below


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


Tuesday, 4 February 2014

2cy Herring Gull (Larus argentatus) with extraordinary marked upperparts

This 2cy Herring Gull (Larus argentatus) with extraordinary marked upperparts was photographed May 2, 2011 in Frederikshavn Harbour.


Monday, 3 February 2014

Yellow-legged Gull (Larus micahellis), 2cy, 2.2.2014, Aarhus Harbour.

Yellow-legged Gull (Larus micahellis) is a scarce winter visitor in Denmark and especially so on Aarhus Harbour.


Sunday, 2 February 2014

Lesser Black-backed Gull (Larus fuscus), 2cy, 2.2.2014, Aarhus Harbour

Lesser Black-backed Gull (Larus fuscus) is a scarce winter visitor in Denmark and especially so in Aarhus. It is therefore interesting to document. Note that upper scapulars have been replaced, lower rows of lower scapulars are still juvenile. Wing-coverts and tertials are juvenile.