Search found 46 matches

by Kent Olsen
Wed Mar 28, 2012 3:18 pm
Forum: Identification
Topic: Viking Gull or Thayer's Gull in Denmark?
Replies: 25
Views: 13608

Viking Gull or Thayer's Gull in Denmark?

In this post: http://www.talk.gull-research.org/viewtopic.php?f=7&t=12&start=20#p3044 another ID than Viking Gull has been suggested based on these photos: http://gulldk.blogspot.com/2012/02/viking-gull-l-hyperboreus-x-l.html I have now selected some more photos of the same individual: http://gulldk...
by Kent Olsen
Fri Mar 09, 2012 10:21 am
Forum: Other taxa & hybrids
Topic: Viking Gull - Larus hypergentatus
Replies: 22
Views: 18923

Re: Viking Gull - Larus hypergentatus

Viking Gull, February 2012: http://gulldk.blogspot.com/search/label/Larus%20hyperboreus%20x%20Larus%20argentatus Pale Herring Gull, 1cy: http://gulldk.blogspot.com/2010/09/herring-gull-larus-argentatus-with.html Pale Herring Gull, 2cy: http://gulldk.blogspot.com/2011/04/herring-gull-larus-argentatus...
by Kent Olsen
Tue Feb 28, 2012 12:46 pm
Forum: White-winged Species
Topic: Faint pigmented Kumlien's?
Replies: 8
Views: 7587

Re: Faint pigmented Kumlien's?

Peter, you have a point. However, according to my knowledge few Kumlien´s does occur within glaucoides colonies in Greenland. Not that many, but e.g. David Boertmann has a photo of a par in Ilulissat: http://www.netfugl.dk/pictures.php?id=showpicture&picture_id=10132 and Lars Witting mentions that t...
by Kent Olsen
Mon Feb 27, 2012 9:25 pm
Forum: White-winged Species
Topic: Faint pigmented Kumlien's?
Replies: 8
Views: 7587

Re: Faint pigmented Kumlien's?

Yes, very exciting. It would be interesting to hear whether the pattern I describe occurs in Newfoundland or if it is only seen on this side of the Atlantic, incl. Iceland. Is the later the case it may indicate that the influx this winter may have originated from an area which involves a high degree...
by Kent Olsen
Mon Feb 27, 2012 11:02 am
Forum: White-winged Species
Topic: Faint pigmented Kumlien's?
Replies: 8
Views: 7587

Faint pigmented Kumlien's?

When I look at the excellent work by Howell & Mactavish (2003) I think one type may be missing if it is a Kumlien’s Gull I have in mind. It is a type where the outer webs of the outer primaries are not obviously dark pigmented and approach the type a (stage 0) or somewhere between the type a (stage ...
by Kent Olsen
Wed Jan 04, 2012 12:35 pm
Forum: Herring Gull
Topic: HG with extreme bare part colours
Replies: 6
Views: 7189

Re: HG with extreme bare part colours

Thank for your comments and links to similar extreme coloured argentatus which by now have been reported from all around Denmark and least southern and eastern Sweden, northern Poland, Baltic Germany, however, individuals now are reported along their south-western migration route into Western Europe...
by Kent Olsen
Tue Dec 13, 2011 7:35 am
Forum: Caspian Gull
Topic: Caspian? or hybrid in Denmark
Replies: 5
Views: 2466

Re: Caspian? or hybrid in Denmark

This is just an update. The gull has now returned for its fifth winter in a row http://gulldk.blogspot.com/2011/12/possible-caspian-gull-x-herring-gull.html Personally, I find a cachinnans x argentatus-hybrid a possible explanation based on field observations and especially characters seen in last y...
by Kent Olsen
Thu Dec 08, 2011 8:41 pm
Forum: Identification
Topic: Iceland Gull? in Denmark
Replies: 2
Views: 1023

Iceland Gull? in Denmark

Today this gull was seen by a single observer along the west coast of Jutland in Denmark. Is it a second winter Iceland gull? http://www.dofbasen.dk/observationer/images/web/obs/10636209_1.jpg http://www.dofbasen.dk/observationer/images/web/obs/10636209_2.jpg http://www.dofbasen.dk/observationer/ima...
by Kent Olsen
Thu Dec 08, 2011 8:26 pm
Forum: Herring Gull
Topic: HG with extreme bare part colours
Replies: 6
Views: 7189

HG with extreme bare part colours

Several such extreme individuals are seen at the moment in Denmark and at least in southern Sweden. They appear to more frequent right now than ever before. http://gulldk.blogspot.com/2011/12/herring-gull-larus-argentatus-with.html Does any have references for the explanation for such extreme colour...
by Kent Olsen
Sun Jul 24, 2011 8:02 pm
Forum: Great Black-backed Gull
Topic: yellow legget Great black-backed gull
Replies: 3
Views: 4076

Re: yellow legget Great black-backed gull

A Great Black-backed Gull with yellowish legs was also seen on the island Nordre Ronner, North Jutland in Denmark, on 2 May 2011: http://gulldk.blogspot.com/2011/07/grea ... owish.html