Re: [cobirds] Boulder County, Nov. 26th

2009-11-27 Thread Bryan Guarente
COBirders,
I went in search of the Pacific Wren southwest of McCall Lake between Lyons 
and Longmont today at 1:30.  Within seconds of peering over the side of the 
bridge, the bird popped out of the underbrush next to the river.  It had a good 
look at the bird at about 30ft for over 3 minutes.  This time the bird was on 
the south side of the bridge instead of the north like Ted had noted:


http://tinyurl.com/ylystby
Lat: 40.195943N, Lon: 105.207704W

While watching the bird, it called twice, both of which were single alarm 
notes.  I have concern though that the calls I heard were not consistent with 
Western Winter Wren but more likely of the Eastern Winter Wren.  The calls were 
chunkier than what I heard on Nathan's website for Pacific Wren.  Do Pacific 
and Winter Wren calls overlap at all?  Is it possible this bird is a hybrid?  
Are alarm calls sharper and chunkier than the calls noted on Nathan's website?  
I have all sorts of questions about this bird that currently confuse me.  

When viewing the wren, it looked really good for a Western Winter Wren, with 
little barring on its sides, the lightest color being on the throat, and really 
dark brown all over the bird with few spots of whitish/gray.  The supercilium 
remained just as wide behind the eye as in front, but I am not sure if this is 
a characteristic of Western Winter Wren or not.  It seems to be based on 
Sibley's drawings of the birds, but I make no conclusions based on one drawing.

Overall, this bird was really easy to find and didn't really care that I was 
present.  Most Winter Wrens (Eastern) that I have seen are super skulky where 
you can step on them and they don't even move, so this bird was a dramatically 
different experience for me.  It was hanging around with Chickadees while I was 
there.  Good luck if others go out chasing this bird.
 Bryan Guarente
Instructional Designer
The COMET Program
University Corporation for Atmospheric Research
Boulder, CO


  

-- 
Colorado Field Ornithologists: http://www.cfo-link.org/
Colorado County Birding:  http://www.coloradocountybirding.com/

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[cobirds] Boulder County, Nov. 26th

2009-11-26 Thread Ted Floyd

Hello, Birders.
 
Hannah and Andrew and I birded around Boulder County this Thanksgiving 
afternoon, Thursday, Nov. 26th.
 
At the point where the St. Vrain River crosses 63rd Street, we saw--and more 
to the point heard--a Pacific Wren. The bird was with a flock of Pink-sided and 
Slate-colored Juncos. It stayed pretty tight in a tangle of understory 
vegetation extending from 40.196155N, 105.207924W to 40.196143N, 105.208173W. 
The bird called constantly and responded well to pishing. Learn all about the 
Pacific Wren at Nathan Pieplow's blog: http://tiny.cc/7Z2vl. It's a cool bird, 
it's surely a valid species, and its call doesn't sound much like a Winter 
Wren's. (I don't agree that its call note sounds like a Wilson's Warbler--or 
any other warbler, really. To my ears, the call of Pacific Wren sounds more 
like the call of Carolina Wren.) By the way, I actually think there were two 
Pacific Wrens back in there; sure sounded like it, anyhow. (The habitat is 
wonderful.) But I never saw more than the one bird at a time.
 
Over at Lagerman Reservoir, we saw the Long-tailed Duck discovered last week by 
Bill Schmoker.
 
And at McIntosh Lake, we saw a few Bonaparte's Gulls still lingering, a bunch 
of moribund gizzard shad, and Nick Komar and Cole Wild.
 
---
 
Ted Floyd
Editor, Birding
 
Check out Birding magazine on Twitter: http://twitter.com/BirdingMagazine
 
---   
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Colorado Field Ornithologists: http://www.cfo-link.org/
Colorado County Birding:  http://www.coloradocountybirding.com/

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