Date: 2/28/13 11:59 am
From: mike burchett <mikeburchett23...>
Subject: Re: [MDBirding] Identification of the swan at Cash Lake


Jared and others,

EBird shows two reports of hybrids:

1. single bird by Steven Mlodinow -- Fir Island, Skagit County, Washington,
US
http://ebird.org/ebird/view/checklist?subID=S10163629
Comments: "published in NAB; presumably returning bird. In flock of Trumps.
About 8-10% yellow stripe on bill; bill shape somewhat hefty, but
intermediate. Bird did aggression displays of Trumpeter Swan."

2. single bird by Jim Stasz, Marshall Iliff -- Lilypons Water Gardens,
Frederick County, Maryland, US
http://ebird.org/ebird/view/checklist?subID=S12896254
Comments: "imm. photos. previously reported"

Good birding,
Mike Burchett
Ocean Pines, MD
flickr.com/photos/mikeburchett/


On Thu, Feb 28, 2013 at 9:00 AM, Jared Fisher <Jared.Fisher...>wrote:

> Thanks Mikey for the very informative post. I'll admit to not even having
> heard of this hybrid combination. I had written in my ebird checklist and
> flickr description about this bird not appearing to show the classic V
> pattern of Trumpeter swan (visible in this photo
> http://www.flickr.com/photos/69746634@N02/8490200154/in/photostream).
> However with a close look (pointed out to me by Nancy Magnusson), there is
> something a little weird going on with this field mark on this bird. There
> is a discontinuity in the coloration, with the darkest black making a V
> shape and a lighter shade in the middle. We had assumed that this was
> perhaps just dirty/stained feathers? Of course, given all the other
> inconsistencies mentioned, your case for it being intermediate is pretty
> convincing. Does anyone have more information on the status of "Trumpling"
> Swans or even other photos of presumed birds?
>
> Thanks again,
>
> Jared Fisher
> Bethesda, MD
>
>

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