www.gull-research.org

paul, as mentioned in the text, structurally it looks a lot like an argentatus but almost nothing reminds of heuglini - leg colour, primary pattern with 2 very large mirrors (this would be totally off for heuglini but good for marinus involvement). some female GBBG are as small as herring gulls. ha...

Thanks for the postings guys, really appreciate your input. It certainly feels like argentatus x marinus is the correct solution, but i guess that smiths x marinus can't be ruled out either, especially considering there was a small influx (3-4 birds) of kumlieni a few weeks later. Thanks for all the...

This was seen in Lerwick, Shetland in 15/02/2002. I've only just got around to digitising the slides. Thoughts at the time were that it was either a hybrid argentatus x marinus or perhaps just a very dark argentatus . Apologies for the poor quality of the pictures, but I'd be very interested in your...