Dutch Birding

Kleine Burgemeester

Larus glaucoides  ·  Iceland Gull

Kleine Burgemeester  ·  Larus glaucoides  ·  07-02-2010  ·  Arnoud B van den Berg

Datum 7 February 2010
Locatie Amsterdam West
Fotograaf Arnoud B van den Berg Arnoud B van den Berg
Bekeken 7354 ×

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Arnoud B van den Berg

Arnoud B van den Berg
 ·  9 February 2010  23:48

Bruce Mactavish (Newfoundland: van de uitvoerige kumliens-lezing op DBA-dag) schreef: "I don't think it is possible to be sure what subspecies this gull is. We get some presumed Kumlien's with this little dark in the tips of the outer primaries. And by mid to late winter these marks are usually completely lost leaving clean outer primaries without any marks or dark shading. The bill pattern is within the range of Kumlien's. The overall slight build of the bird, the very light marks in the primary tips, the two-tone bill and range are strong indications this is glaucoides. Sorry I cannot be more decisive."

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