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On Nov 9, 2016, at 10:37 PM, Mark Nikas <elepaio@xxxxxxxxx> wrote:
Pasted below are pieces an OBOL thread on Winter / Pacific Wrens from several
years ago that I had squirreled away. Sorry I don't remember who all the
quotes are from besides Shawneen.
Mark Nikas
Here is an Online article by David Sibley complete with range maps on
distinguishing the two. Plumage isn’t going to help. Call notes are the
best clue for an out-of-range bird.
http://www.sibleyguides.com/2010/08/distinguishing-pacific-and-winter-wrens/
The easiest way to detect a WINTER WREN is by call versus plumage. They
sound very different from PACIFIC WREN. PACIFIC WREN's call note of
"timp-timp" which sounds much like a Wilson's Warbler to my ear (and as
stated in The National Geographic Guide and Sibley) while WINTER WREN sounds
very much like a Song Sparrow call note. When I first moved back east it
took me quite a while of living there before I recognized Winter Wren because
it sounds so much like a Song Sparrow. And I dare say in order to confirm
the presence of either wren out of range it would be to one's advantage to
record its call.
There are records of WINTER WREN in Arizona and California. Sibley has
draft range maps of the split online at:
http://www.sibleyguides.com/2010/08/new-draft-range-maps-for-winter-wren/
Shawneen Finnegan
At the bottom of the page linked in Shawneen's email is a link to Nathan
Pieplow's page on winter wren and Pacific wren sounds. You can get to
it directly here: http://earbirding.com/blog/archives/774
On Wed, Nov 9, 2016 at 8:23 PM, Paul Sullivan <paultsullivan@xxxxxxxxxxxx>
wrote:
OBOL:
Wayne's post about the possibility of a Winter Wren in Oregon had me asking,
"How would you know?" When the split of the Pacific Wren from Winter Wren
was announced, I was mystified about how to tell them apart. They say the
two look alike and that voice is the best way to tell them apart. At that
time I listened to the songs of the two on xeno-canto.org and I couldn't
hear a difference. I went back to try again a couple days ago, and I still
can't tell.
The sonograms look a little different, but I can't hear a difference.
So I went to Sibley's Guide to Birds and studied. I've pulled out this:
Pacific Wren..............vs..............Winter Wren
Visual difference:
Slightly darker & ........................slightly grayer
More rufous
Call notes:
short, double.............................short, double
Higher & sharper........................lower, softer
Song:
long, very high...........................long, very high
tinkling trills...............................tinkling trills
more mechanical........................more musical
rattling......................................soft quavering
thin buzzes.................................warbles
faster........................................slower
Each male's repertoire:
30 + songs................................. 2 songs
That last one, I think I could hear.
I imagine there is an article out there from Birding, or other source that
could shed light on this.
Perhaps someone will tell us.
Paul T. Sullivan
paultsullivan@xxxxxxxxxxxx
503-472-5306 h
971-237-4864 c
------------------
Subject: Not Oregon - Winter Wren
Date: Mon Nov 7 2016 21:56 pm
From: whoffman AT peak.org
Hi -
The Calbirds list has a report with photos and recordings, of a Winter Wren
in the eastern Mojave Desert at an oasis called "Crystal Springs."
I have been expecting one to be found in Oregon ever since they were split,
making ours Pacific Wrens.
They seem to be pretty much annual now in California in fall and winter, and
tend to be found in places like this - brushy oases in the desert.
Seems to me likely places in Oregon would be similar - wet spots with low
cover, and the further east the more likely. Some spots that seem plausible
to me include the river-bottom woodlot next to the fish hatchery in
Enterprise, Rhinehart (sp?) Canyon between La Grande and Elgin, patches of
trees/brush in the lower Owyhee Canyon, particularly near hotsprings, the
Fields Oasis, maybe Page Springs Campground.
Best time might be late October - Nov.?
Wayne
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