Subject: Alder Flycatcher (sonogram images)
Date: Jul 10 19:17:44 2002
From: Ruth Sullivan - GODWIT at worldnet.att.net


Hello Mike and tweeters,
I compared the Sonogram what Dennis Paulson made of our Alder Flycatcher on
the 15 th of June in Okanagon Co.It matches up with the one made in
Oregon.This is wy it is so importend to make Sonogram of this birds.As we
was visiting again on July the 7th where we was running in to Paul Lehman
who led a fieldtrip with birders from back east.We had a Willow Flycatcher
giving a call note what sounded almost like an Alder,this bird did not sing
the song.But after hearing this bird for over 15 minutes,a second bird
nearby,did the same call.It was than decided that this two was Willows.One
must have real good hearing to identify the Alder,what Wayne Webber already
said in all his messages.

Ruth Sullivan
Tacoma
----- Original Message -----
From: "Mike Patterson" <celata at pacifier.com>
To: <drtbrdr at earthlink.net>
Cc: "Tweeters Messages" <tweeters at u.washington.edu>
Sent: Thursday, June 20, 2002 7:25 PM
Subject: Re: Alder Flycatcher (sonogram images)


> Here's a page I put together one or two Alder Flycatcher
> reports ago:
>
> http://home.pacifier.com/~mpatters/bird/traills/traills.html
>
>
>
> David Beaudette wrote:
> >
> > Thanks to all who have added to this discussion. Several times it has
been
> > mentioned that birders may hear the same bird and give differing verbal
> > descriptions of what the bird sounded like. So, when documenting a
rarity
> > like Alder
> > Flycatcher a recording is the way to go. So if we get a good quality
> > recording and then
> > a sonogram, then what? What do we compare it to with confidence?
> >
> > Is there a definitive study out there on Alder vocalizations that we
could
> > use as a base of info on vocals for this species. Hopefully one that has
> > looked
> > at vocals from across the range. Looking at Sibley, the Alder
> > has a very large range. If they all sound the same from across this
range,
> > has this been
> > documented with sonograms? What repository of Alder sonograms from
> > throughout
> > the range do we examine? Where does a state bird records committee go?
> > If comparative sonograms are not reflective of the range of the species
and
> > possibly some examples of known individual variation the process of
> > comparison could be flawed. Museums have specimens of many individuals
of
> > the same species to show the range of variation. Hopefully the same is
true
> > for bird sound.
> >
> > Since Washington is out of the main range for Alder could some or most
> > of these Alder candidates be hybrids with Willow? What would a hybrid
sound
> > like?
> >
> > Sorry for all the questions but when thinking about the Alder/Willow ID
in
> > WA State, I wonder if we really have the answers.
> >
> > I have listened to Willow Flycatchers quite a bit and I can sometimes
> > hear variations in the song in just the same patch from different birds.
> > Hearing protection I used at those Grateful Dead concerts was a good
thing.
> >
> > Dave Beaudette
> > Wenatchee,WA
> > drtbrdr at earthlink.net
>
> --
> Mike Patterson
> Astoria, OR
> celata at pacifier.com
>
> http://www.pacifier.com/~mpatters/bird/bird.html
>