Ben,
This link from the Trumpeter Swan Society says the red border on the
lower mandible may be present in some Tundra Swans.
http://www.trumpeterswansociety.org/head-bill.html
So I'd be hesitant to call this a Trumpeter based on that feature
alone--though I'm not saying it couldn't be one. Not sure if you are
basing the ID on anything else.
Jim Moore
Rockville, MD
On Tue, Feb 5, 2013 at 12:00 PM, Benjamin DeHaven
<benjamindehaven...> wrote:
> After going for the Northern Lapwing yesterday and failing to find it I headed on down to Blackwater NWR. While there I found 2 Swans which I assumed to be Tundra, I took a few shots and then they took off and flew towards me (kind of) then disappeared. When I got home and looked at my pictures I noticed one of them had an orange grin patch making it a Trumpeter Swan. The 1 Tundra and the 1 Trumpeter Swan were hanging out along the Wildlife Drive beside 2 American White Pelicans. I posted pictorial proof in the eBird checklist, but I will link directly to the imgur.com files here.
>
> 2/4/2013 - Blackwater NWR - Wildlife Drive - ~3:45pm
>
> http://i.imgur.com/DdFW5nd.jpg
> http://i.imgur.com/5ZAp0M6.jpg
> http://i.imgur.com/mrHxqJY.jpg
>
> I had no idea I had a Trumpeter until nearly 11pm last night and I was nodding off at the computer as it was.
>
> Benjamin DeHaven
> Timonium, Maryland
>
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