The links I posted earlier are relation to the Nutting's in the Roberson
paper..I posted them to show how difficult in can be. If you check out
the updates at bottom, you can see the process the id went through.
Bob Archer
On Tue, Oct 27, 2015 at 7:06 PM, David Irons <llsdirons@xxxxxxx> wrote:
Mike et al.,
I would not put much stock in Roberson's "article" on visually separating
Ash-throated and Nutting's. The consensus is that bird he uses to make his
case for Nutting's is actually an Ash-throated. The fact that what would be
a useful article isn't published anywhere but on his personal blog should
be an indicator of it's reliability. I received a note from a good friend
who is in the process of writing authoritative article on this topic. He
has seen photos of the Gearhart bird and sees no reason to think it isn't
an Ash-throated.
Dave Irons
Portland, OR
Sent from my iPhone
On Oct 27, 2015, at 4:50 PM, Mike Patterson <celata@xxxxxxxxxxxx> wrote:
I went back and measured the rail I photographed the bird on and
the did a bit of photo-metrics.
https://www.flickr.com/photos/mbalame/22516519292
The bird is simply too small to be a Brown-crested Flycatcher.
It is also (arguably) too small for Ash-throated, but not by much.
However, if we are to believe:
http://creagrus.home.montereybay.com/nuttingfly-id.html
and examine:
https://www.flickr.com/photos/mbalame/22541497361
We should be able to sort this out. I am admittedly color sight
challenged when it comes to red and green, but I see yellow in the
middle group of flight feathers and my daughter concurs.
Discuss...
--
Mike Patterson
Astoria, OR
The history of photons
http://www.surfbirds.com/community-blogs/northcoastdiaries/?p=3005
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