birding-aus

Vagrant Gull

To: L&L Knight <>
Subject: Vagrant Gull
From: Carl Clifford <>
Date: Mon, 18 Feb 2008 21:31:53 +1100
But if develops a taste for fish & chips and stays on, wouldn't it then be then classed as a feral and not really tickable?

Carl Clifford


On 18/02/2008, at 9:25 PM, L&L Knight wrote:

Perhaps if the bird's diet of fish and chips continues, it will stay in Cooktown until it moults and people will be able to definitively ID it based on its next plumage? I expect it will be a while before the BARC submission goes in.

On the subject of BARC submissions, does BARC ever consult international ornithologists who frequently see the species in question [ie for whom the species, in its various forms, is a common bird]?

Regards, Laurie.

On 18/02/2008, at 7:51 PM, Nikolas Haass wrote:

Jon and Tony,

Thanks for all the additional comments and photos. I do agree - contra my yesterday's comment - that this bird overall indeed looks better for a Mongolian Gull than a Slaty-backed Gull. I guess I put too much weight on my impression of primary and tail pattern. However, I am still not absolutely happy with the huge windows in the primaries and the tail pattern. Shouldn't mongolicus have a smaller window in the primaries? (Interestingly in some of the pictures it appears smaller, probably due to a less spread wing, in others the window clearly reached p9) As Jon confirmed my earlier comment, mongolicus should have a terminal band in the tail rather than a solid brown tail. Shouldn't 1st winter mongolicus have all tail feathers whitish with extensive blackish brown tips (resulting in a terminal band) rather than an almost solid blackish brown tail with the inner webs of the outer three pairs of tail feathers extensively whitish?

Cheers,

Nikolas


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