Mirror on P8

[Leon Edelaar]

I have never seen a (small) mirror on both P8 in a Herring gull.
I haven't found an example on the web.
Has anyone seen this before or is this really rare?

kind regards
leon edelaar

[lou bertalan]

hi leon,

it's not common but sometimes seen in herring gull. in this ind. (photo chris gibbins) the p8 mirror is even larger: http://www.birdforum.net/attachment.php ... 1293742879

lou

[adriaens]

I have only ever seen this in Iceland, where I suspect it is a sign of Glaucous Gull influence.
Was Chris' photo taken in the north of Scotland in winter?

[lou bertalan]

I have only ever seen this in Iceland, where I suspect it is a sign of Glaucous Gull influence.
Was Chris' photo taken in the north of Scotland in winter?

no, it's a record shot of a bird wintering in bucharest last winter. one of 3 record shots of herring gull for that country

are there proven hybrids glaucous x iceland gull????

lou

[adriaens]

I was talking about Iceland, the country, Lou, not the bird...

[lou bertalan]

I was talking about Iceland, the country, Lou, not the bird...

ouff

[Herman Bouman]

Today this bird was present at my local patch (Houten, Utrecht, the Netherlands). All white p10, small marking on p9 and a mirror on p8. Not a very common primary pattern to me.