Search found 46 matches

by Kent Olsen
Fri Feb 08, 2013 11:42 am
Forum: Identification
Topic: Pure LBBG or LBBGxEUHG?
Replies: 2
Views: 1085

Pure LBBG or LBBGxEUHG?

In Denmark we have a gull which has been returning to our local harbour for several years. Originally thought to be a graelsii or “Dutch intergrade”, but as the legs are at their most only slightly yellow I have a nagging feeling that it may be a hybrid. It is wearing a metal ring, but we have not b...
by Kent Olsen
Thu Feb 07, 2013 11:15 am
Forum: Identification
Topic: Pure cachinnans or hybrid?
Replies: 3
Views: 1577

Pure cachinnans or hybrid?

Found this the other day in Denmark: http://gulldk.blogspot.dk/2013/02/caspi ... s-3cy.html

It is my firste second winter individual missing white mirror on p10

What do you think of it?

Kent
by Kent Olsen
Thu Aug 09, 2012 11:41 am
Forum: Caspian Gull
Topic: Photos af 14 different CAC from Denmark
Replies: 1
Views: 1869

Photos af 14 different CAC from Denmark

The summer holiday was held at Bornholm (http://tinyurl.com/bpksqkf) and Ertholmene (http://tinyurl.com/blb6x4s) where I had the opportunity to scrutinise a few gulls. #01: 1cy, 28.7.2012, Vesterskær, Frederiksø, Ertholmene (#1): http://gulldk.blogspot.dk/2012/08/caspian-gull-larus-cachinnans-1cy_87...
by Kent Olsen
Mon Jun 25, 2012 2:52 pm
Forum: Identification
Topic: Viking Gull or Thayer's Gull in Denmark?
Replies: 25
Views: 13608

Re: Viking Gull or Thayer's Gull in Denmark?

As time has passed, I have continued to surf online photos of THGUs and would like to add that I still feel rather confident about it being a Thayer’s Gull. Another thing that I would like to add is that some people might be fooled by its appearance because most photos are taken at rather close rang...
by Kent Olsen
Thu Apr 19, 2012 1:01 pm
Forum: Identification
Topic: Viking Gull or Thayer's Gull in Denmark?
Replies: 25
Views: 13608

Re: Viking Gull or Thayer's Gull in Denmark?

Hello Brandon et al. I have taken the liberty to use some of your great photos on my personal blog: http://gulldk.blogspot.com/2012/04/danish-gull-versus-thayers-from-ontario.html taken from here: https://picasaweb.google.com/117329578255897846071/KumlienSThayerSGullsFromONTARIO# If people are again...
by Kent Olsen
Sat Apr 07, 2012 11:44 pm
Forum: Identification
Topic: Viking Gull or Thayer's Gull in Denmark?
Replies: 25
Views: 13608

Re: Viking Gull or Thayer's Gull in Denmark?

Also discussed here: http://old.nabble.com/Thayer%27s-Gull-i ... #a33645920 with strong arguments from Peter Adriaens and Hans Larsson with series of informative links...
by Kent Olsen
Fri Apr 06, 2012 9:56 pm
Forum: Identification
Topic: Viking Gull or Thayer's Gull in Denmark?
Replies: 25
Views: 13608

Re: Viking Gull or Thayer's Gull in Denmark?

I have made a series of collages which makes direct comparison with Thayer’s from California and Japan possible. To evaluate the finer details please remember to click on the photos as they will expand to full size. http://gulldk.blogspot.com/2012/04/thayers-gull-in-direct-comparison-with.html Does ...
by Kent Olsen
Mon Apr 02, 2012 2:24 pm
Forum: Identification
Topic: Viking Gull or Thayer's Gull in Denmark?
Replies: 25
Views: 13608

Re: Viking Gull or Thayer's Gull in Denmark?

Unfortunately there are no overview photos beside what is apparent in these photos which you have seen before: http://gulldk.blogspot.com/2012/04/possible-thayers-gull.html However, now posted in a completely un-cropped version I hope that you can have some kind of impression by comparing with the j...
by Kent Olsen
Fri Mar 30, 2012 8:28 am
Forum: Identification
Topic: Viking Gull or Thayer's Gull in Denmark?
Replies: 25
Views: 13608

Re: Viking Gull or Thayer's Gull in Denmark?

I thought that the overall greyish upperparts contrasting with the brown underparts; unmoulted juvenile upperparts by February; rather smooth brown underparts; sloping forehead with feathering extending on to the upper mandible, pale ring around the eyes was explained by Glaucous Gull influence, whe...
by Kent Olsen
Wed Mar 28, 2012 3:23 pm
Forum: Other taxa & hybrids
Topic: Viking Gull - Larus hypergentatus
Replies: 22
Views: 18923

Re: Viking Gull - Larus hypergentatus

Very interesting, Peter Let’s move this particular discussion to this post: http://www.talk.gull-research.org/viewtopic.php?f=13&t=753 I have now selected other photos of the same individual: http://gulldk.blogspot.com/2012/03/viking-gull-or-thayers-gull.html If you have other California photos for ...