[obol] Gull ID challenge: Glaucous, or...?

[Alan Contreras]

I'm surprised that there could be so much pale, in a semi-cutoff pattern, on
a pure first-year G-wing bill in February.  Phil's points about the plumage
make sense to me, though the primaries seem rather unicolor.

-- 
Alan Contreras
EUGENE, OREGON
acontrer at mindspring.com



> From: Tim Rodenkirk <garbledmodwit at yahoo.com>
> Date: Sun, 25 Feb 2007 08:08:09 -0800 (PST)
> To: Jeff Gilligan <jeffgill at teleport.com>, Greg Gillson
> <greg at thebirdguide.com>, OBOL <obol at lists.oregonstate.edu>
> Subject: Re: [obol] Gull ID challenge: Glaucous, or...?
> 
> Hi Jeff,
> 
> I'm sure there are lots of hybrids out there
> particularly Western x Glaucous-winged, I guess later
> in the winter I just start to notice a lot more real
> bleached out looking Glaucous-winged types (including
> hybrids I guess, but mainly pure Glaucous-winged).
> This has been discussed on OBOL before, I guess I just
> think there is a wide range of bleaching in first year
> birds(and hybrids)that could confuse an unwary
> birder...
> 
> Tim
> --- Jeff Gilligan <jeffgill at teleport.com> wrote:
> 
>> Are we sure that the many birds that resemble this
>> one are all not hybrids
>> between the two species?  Apparently there is a wide
>> area of hybridization,
>> and the two species are quite willing to hybridize.
>> Jeff.
>> 
>> 
>> On 2/24/07 3:34 PM, "Tim Rodenkirk"
>> <garbledmodwit at yahoo.com> wrote:
>> 
>>> I think I agree with Phil Pickering on this one, I
>> see
>>> lots of very pale Glaucous-winged Gulls that look
>> like
>>> this later in the winter- like about now. The bill
>>> looks right for a Glaucous-winged to me also, plus
>> the
>>> primaries have a lot of light brown color to them,
>>> consistent with what I'd expect for
>> Glaucous-winged. I
>>> guess my question would be what differentiates a
>>> Nelson's from a very pale Glaucous-winged?
>>> 
>>> Tim R
>>> Coos Bay
>>> --- Greg Gillson <greg at thebirdguide.com> wrote:
>>> 
>>>> Jeff Harding sent some photos of a first year
>>>> white-winged gull from Salem.
>>>> 
>>>> What would you call it?
>>>> 
>>>> 
>>> 
>> 
> http://thebirdguide.com/temp_images/RecentPhotos/RecentBirdPhotos.htm
>>>> 
>>>> Greg Gillson
>>>> The Bird Guide, Inc.
>>>> greg at thebirdguide.com
>>>> http://thebirdguide.com
>>>> 
>>>> 
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>>> 
>>> 
>>> 
>>> 
>>>  
>>> 
>> 
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> 
> 
> 
>  
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