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ID-FRONTIERS for October 5-11, 2003
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Messages are displayed in the order they were received.
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| Subject | From | Date | Time |
| RFI: Ridgway's Rough-winged Swallow: ID and
distribution | Martin Reid | Mon, 6 Oct 2003 | 5:30am |
| Unidentified nocturnal flight sound | Christopher T. Tessa | Mon, 6 Oct 2003 | 12:11pm |
| Re: Unidentified nocturnal flight sound | Mike Patterson | Mon, 6 Oct 2003 | 4:43pm |
| Re: Unidentified nocturnal flight sound | Olivier Barden | Mon, 6 Oct 2003 | 6:39pm |
| Re: Unidentified nocturnal flight sound | Mike Patterson | Mon, 6 Oct 2003 | 7:42pm |
| Re: Unidentified nocturnal flight sound | Kevin J. McGowan | Tue, 7 Oct 2003 | 5:32am |
| Re: Unidentified nocturnal flight sound | Christopher T. Tessa | Tue, 7 Oct 2003 | 6:35am |
| Re: Unidentified nocturnal flight sound | David Sibley | Tue, 7 Oct 2003 | 7:25am |
| Re: Unidentified nocturnal flight sound | Noel Wamer | Tue, 7 Oct 2003 | 7:41am |
| Spizella head patterns | Lethaby, Nick | Wed, 8 Oct 2003 | 5:17pm |
| ID of Ridgway's Rough-winged Swallow: a follow-up | Martin Reid | Thu, 9 Oct 2003 | 6:02am |
| Re: ID of Ridgway's Rough-winged Swallow: a
follow-up | Rich Hoyer | Thu, 9 Oct 2003 | 10:47am |
| migration patterns of N. RW Swallows | Jim Barton | Thu, 9 Oct 2003 | 3:46pm |
| Re: Spizella head patterns | Matt Sharp | Fri, 10 Oct 2003 | 12:41pm |
| Re: ID of Ridgway's Rough-winged Swallow: a
follow-up | Matt Sharp | Fri, 10 Oct 2003 | 12:44pm |
| Chipping Sparrows | Matt Sharp | Fri, 10 Oct 2003 | 2:42pm |
| Re: Spizella head patterns | Glenn A dEntremont | Fri, 10 Oct 2003 | 6:39pm |
| Unidentified gadfly petrel from Hawaii | Angus Wilson | Sat, 11 Oct 2003 | 12:45pm |
|
To use email addresses replace '(AT)' with '@'.
This is done to confuse the spam 'bots.
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[ << | >> | ^^ ]
Subject: RFI: Ridgway's Rough-winged Swallow: ID and
distribution
From: Martin Reid <upupa(AT)AIRMAIL.NET>
Date: 6 Oct 2003 5:30am
Dear all,
See Subject. I'd appreciate any insight/links/references, and especially
photos, to this species in addition to Howell and Webb (F. G. to the birds
of Mexico, plus the two references mentioned therein from 1981 and 1986),
and Turner and Rose (Swallows.)
Is Ridgway's Rough-winged Swallow *Stelgidopteryx [serripennis] ridgwayi* A
potential vagrant to the ABA area?
Are the ID criteria reliable?
What about variation in Northern R-W Swallow; can the form(s?) found in the
ABA area closely-approach ridgwayi in features?
My interest has been piqued by this recently-seen individual:
http://www.martinreid.com/roughwing.html
- it was seen among a massive drop-in of swallows (predominantly Barns)
that I enjoyed and photographed that morning:
http://www.martinreid.com/swallows.html
- including interesting plumages of Barn, Bank, and Cliff swallows
(comments would be welcomed on these birds, also.)
Good birding,
Martin
Martin Reid
Fort Worth, Texas
mailto:upupa(AT)airmail.net
http://www.martinreid.com
[ << | >> | ^^ ]
Subject: Unidentified nocturnal flight sound
From: "Christopher T. Tessaglia-Hymes" <cth4(AT)CORNELL.EDU>
Date: 6 Oct 2003 12:11pm
Greetings,
at the following link, please find a mystery flight call. It was recorded
during a nocturnal migration over Etna, NY (upstate, NY) last year, on 29
September 2002 around 3:00am.
Any suggestions toward a positive ID would be helpful.
Sincerely,
Chris T-H
http://www.people.cornell.edu/pages/cth4/Chuckle.htm
=============================================
Christopher T. Tessaglia-Hymes, Research Assistant
Bioacoustics Research Program, Cornell Lab of Ornithology
159 Sapsucker Woods Road, Ithaca, New York 14850
Voice: 607-254-2418, FAX: 607-254-2460
<http://www.birds.cornell.edu/brp> <mailto:cth4(AT)cornell.edu>
=============================================
[ << | >> | ^^ ]
Subject: Re: Unidentified nocturnal flight sound
From: Mike Patterson <celata(AT)pacifier.com>
Date: 6 Oct 2003 4:43pm
First, the URL should be:
http://www.people.cornell.edu/pages/cth4/Chuckle.htm
I downloaded the soundfile and ran it through my copy of
Canary (the pre-Raven sound processing software from
Cornell) and cleaned it up a bit.
The sonogram I got is at:
http://home.pacifier.com/~neawanna/temp/myst.jpg
I sounds like a Willow Flycatcher to me, as unlikely as
this would seem to be as a nocturnal flyover...
I just happened to have some Willow Flycatcher sonograms
at: http://home.pacifier.com/~mpatters/bird/traills/traills.html
See for yourself....
"Christopher T. Tessaglia-Hymes" wrote:
>
> Greetings,
>
> at the following link, please find a mystery flight call. It was recorded
> during a nocturnal migration over Etna, NY (upstate, NY) last year, on 29
> September 2002 around 3:00am.
>
> Any suggestions toward a positive ID would be helpful.
>
> Sincerely,
> Chris T-H
>
> http://www.people.cornell.edu/pages/cth4/Chuckle.htm
>
> =============================================
> Christopher T. Tessaglia-Hymes, Research Assistant
> Bioacoustics Research Program, Cornell Lab of Ornithology
> 159 Sapsucker Woods Road, Ithaca, New York 14850
> Voice: 607-254-2418, FAX: 607-254-2460
> <http://www.birds.cornell.edu/brp> <mailto:cth4(AT)cornell.edu>
> =============================================
--
Mike Patterson
Astoria, OR
celata(AT)pacifier.com
I do not know which to prefer,
The beauty of inflections
Or the beauty of innuendoes,
The blackbird whistling
Or just after.
- Wallace Stevens
http://www.pacifier.com/~mpatters/bird/bird.html
[ << | >> | ^^ ]
Subject: Re: Unidentified nocturnal flight sound
From: Olivier Barden <whitephasegyrfalcon(AT)HOTMAIL.COM>
Date: 6 Oct 2003 6:39pm
Good evening,
Personally, I would not be able to identify with certainty to species the
author of this flight call, but I have some ideas.
A Woodpecker immediately came to mind when hearing this, I find the lazy
churring quality somewhat reminiscent of Melanerpes woodpeckers, especially
Red-bellied Woodpecker. This species i'd think is quite unlikely to call at
night in upstate New York, so the migratory Red-headed Woodpecker might be a
better fit.
I've heard a call vaguely similar to this example from quarreling immature
Yellow-bellied Sapsuckers in flight. It has shows a potential for variation,
and being highly migratory, is more likely than Melanerpes species in my
opinion.
Good birding,
Olivier Barden,
Ste-Foy, Quebec
whitephasegyrfalcon(AT)hotmail.com
_________________________________________________________________
Tired of spam? Get advanced junk mail protection with MSN 8.
http://join.msn.com/?page=features/junkmail
[ << | >> | ^^ ]
Subject: Re: Unidentified nocturnal flight sound
From: Mike Patterson <celata(AT)pacifier.com>
Date: 6 Oct 2003 7:42pm
Yeah, Red-headed Woodpecker is a better fit
http://home.pacifier.com/~neawanna/temp/rehewo.GIF
Olivier Barden wrote:
>
> Good evening,
>
> Personally, I would not be able to identify with certainty to species the
> author of this flight call, but I have some ideas.
> A Woodpecker immediately came to mind when hearing this, I find the lazy
> churring quality somewhat reminiscent of Melanerpes woodpeckers, especially
> Red-bellied Woodpecker. This species i'd think is quite unlikely to call at
> night in upstate New York, so the migratory Red-headed Woodpecker might be a
> better fit.
> I've heard a call vaguely similar to this example from quarreling immature
> Yellow-bellied Sapsuckers in flight. It has shows a potential for variation,
> and being highly migratory, is more likely than Melanerpes species in my
> opinion.
>
> Good birding,
>
> Olivier Barden,
> Ste-Foy, Quebec
> whitephasegyrfalcon(AT)hotmail.com
>
> _________________________________________________________________
> Tired of spam? Get advanced junk mail protection with MSN 8.
> http://join.msn.com/?page=features/junkmail
--
Mike Patterson
Astoria, OR
celata(AT)pacifier.com
I do not know which to prefer,
The beauty of inflections
Or the beauty of innuendoes,
The blackbird whistling
Or just after.
- Wallace Stevens
http://www.pacifier.com/~mpatters/bird/bird.html
[ << | >> | ^^ ]
Subject: Re: Unidentified nocturnal flight sound
From: "Kevin J. McGowan" <kjm2(AT)CORNELL.EDU>
Date: 7 Oct 2003 5:32am
At 01:29 AM 10/7/2003 +0000, Olivier Barden wrote:
>... so the migratory Red-headed Woodpecker might be a
>better fit.
This was my thought when hearing the call. If you look at the last
nocturnal call for Red-headed Woodpecker on the Evans & Obrian cd (Fig. 5),
it seems to match pretty well.
Kevin
*****************************************************
Kevin J. McGowan, Ph.D.
Cornell Laboratory of Ornithology
159 Sapsucker Woods Road
Ithaca, NY 14850
607/254-2432
fax 607/254-2111
kjm2(AT)cornell.edu
http://birds.cornell.edu/crows/
[ << | >> | ^^ ]
Subject: Re: Unidentified nocturnal flight sound
From: "Christopher T. Tessaglia-Hymes" <cth4(AT)CORNELL.EDU>
Date: 7 Oct 2003 6:35am
----INCLUDING text/plain MIME SECTION----
All,
thanks to those who pointed out the link error. The link has now been fixed.
As for the suggestions, I now agree that the mystery call was likely
produced by a Red-headed Woodpecker, Melanerpes erythrocephalus. I compared
the "chuckle" or "churring" call that I recorded to that of a Red-headed
Woodpecker available on The Evans and O'brien CD-Rom Flight Calls of
Migratory Birds: Eastern North American Landbirds. Specifically, as Kevin
McGowan pointed out, Figure 5 of the presumed Red-headed Woodpecker
nocturnal flight calls page sounds and looks nearly identical to that which
I recorded. The only difference I can detect is a slight "hiccup" mid-call
on the sound I recorded. Durations are almost identical; frequency ranges
are also nearly identical; lastly, the modulation structures of each are
very similar.
Assuming that the presumed Red-headed Woodpecker nocturnal flight calls are
indeed Red-headed Woodpeckers, and until someone has a stronger suggestion,
I would feel comfortable identifying this call to Melarnerpes erythrocephalus.
Thanks again for the assistance and suggestions!
Sincerely,
Chris T-H
=============================================
Christopher T. Tessaglia-Hymes, Research Assistant
Bioacoustics Research Program, Cornell Lab of Ornithology
159 Sapsucker Woods Road, Ithaca, New York 14850
Voice: 607-254-2418, FAX: 607-254-2460
<http://www.birds.cornell.edu/brp> <mailto:cth4(AT)cornell.edu>
=============================================
----DELETED text/html MIME SECTION----
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Subject: Re: Unidentified nocturnal flight sound
From: David Sibley <david_sibley(AT)comcast.net>
Date: 7 Oct 2003 7:25am
Chris et al.,
This recording sounds to me like one of the common diurnal calls of
Swainson's Thrush. The sharp, clear upslur at the beginning followed by a
harsh, slightly descending burry note is typical of this two-parted
"qui-brrr" or "whip-purrr" call. The two-syllabled pattern is wrong for
species such as Red-headed Woodpecker, even though the quality of the call
may sound quite similar to that. In fact, I'm surprised at how similar it is
now that I listen to the recordings together, but the sharp, upslurred
"quip" at the beginning is distinctive.
This call of Swainson's Thrush can be heard on Lang Elliott's "Stokes Field
Guide to Bird Songs - Eastern" and other recordings. Unfortunately it is not
included on Evans and O'Brien's fantastic nocturnal flight call CD, probably
because it is not generally used as a flight call or at night. It's not
surprising that it can be heard at night, since many other calls are used
occasionally by nocturnal migrants, as Evans and O'Brien point out in their
intro.
David Sibley
Concord, MA
----- Original Message -----
From: "Christopher T. Tessaglia-Hymes" <cth4(AT)CORNELL.EDU>
To: <BIRDWG01(AT)LISTSERV.ARIZONA.EDU>
Sent: Monday, October 06, 2003 2:50 PM
Subject: [BIRDWG01] Unidentified nocturnal flight sound
> Greetings,
>
> at the following link, please find a mystery flight call. It was recorded
> during a nocturnal migration over Etna, NY (upstate, NY) last year, on 29
> September 2002 around 3:00am.
>
> Any suggestions toward a positive ID would be helpful.
>
> Sincerely,
> Chris T-H
>
> http://www.people.cornell.edu/pages/cth4/Chuckle.htm
>
>
>
> =============================================
> Christopher T. Tessaglia-Hymes, Research Assistant
> Bioacoustics Research Program, Cornell Lab of Ornithology
> 159 Sapsucker Woods Road, Ithaca, New York 14850
> Voice: 607-254-2418, FAX: 607-254-2460
> <http://www.birds.cornell.edu/brp> <mailto:cth4(AT)cornell.edu>
> =============================================
>
>
[ << | >> | ^^ ]
Subject: Re: Unidentified nocturnal flight sound
From: Noel Wamer <nwamer(AT)COMCAST.NET>
Date: 7 Oct 2003 7:41am
I had always assumed that Red-headed Woodpeckers were diurnal
migrants. They seem to be in northern Florida, where the 25 year WCTV
tower study recorded only three casulties. This low number is similar to
other species that are local residents (i.e., Red-cockaded Woodpecker - 2
casualties) or diurnal migrants (Blue Jay - 5). In contrast,
Yellow-bellied Sapsucker is clearly a nocturnal migrant -- 97 casualties
recorded.
Is there any evidence that Red-headeds migrate at night?
Later...
Noel Wamer
Jacksonville, FL, US
The badbirdz blog - http://www.badbirdz.com/weblog/
Mosaics by Noel & Terry - http://home.comcast.net/~terrywest/
[ << | >> | ^^ ]
Subject: Spizella head patterns
From: "Lethaby, Nick" <nlethaby(AT)TI.COM>
Date: 8 Oct 2003 5:17pm
This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.
----INCLUDING text/plain MIME SECTION----
All:
I annually get confused by fall Spizellas. One question I'd like to clarify
is whether Clay-colored Sparrows can ever lack a central crown stripe. I had
1-2 birds I have called Brewer's based on this, although their eye-rings
weren't as conspicuously complete as other Brewer's I've seen.
I did see a Chipping Sparrow that lack a dark line through the lores this
fall as well, and suspect this may be fairly common. Any thoughts on this?
Nick Lethaby
DSP/BIOS Product Manager
Texas Instruments
nlethaby(AT)ti.com <mailto:nlethaby(AT)ti.com>
(805) 562 5106
----DELETED text/html MIME SECTION----
[ << | >> | ^^ ]
Subject: ID of Ridgway's Rough-winged Swallow: a follow-up
From: Martin Reid <upupa(AT)AIRMAIL.NET>
Date: 9 Oct 2003 6:02am
Dear all,
Thanks to some helpful feedback, I've updated my page on the Benbrook Swallow:
http://www.martinreid.com/roughwing.html - there is a hyperlink to a new
page with analysis and more images.
One important piece of the puzzle is to establish the degree (if any) of
variation in color/tone of the crissum in ridgwayi (literally - not
stuarti), so if anyone with access to specimens could look into this and
report back, I'd be very grateful - thank you.
BTW in late August of this year, Tropical Depression Grace swept across the
northern Yucatan, making landfall along the central Texas coast, and dying
out in early September over Waco, TX (95 miles south of Benbrook.)
Regards,
Martin
Martin Reid
Fort Worth, Texas
mailto:upupa(AT)airmail.net
http://www.martinreid.com
[ << | >> | ^^ ]
Subject: Re: ID of Ridgway's Rough-winged Swallow: a
follow-up
From: Rich Hoyer <calliope(AT)THERIVER.COM>
Date: 9 Oct 2003 10:47am
Martin and Others,
Ridgway's Rough-winged Swallow is larger than Northern Rough-winged Swallow
in direct comparison, but I don't think comparison with just Barn Swallow
would reveal anything useful.
The pale spots near the bill don't seem quite right and may even be the
nares.
The tip of the undertail coverts in Ridgway's that I have seen were really
dark and not like the bird in the photo. They are basically concolorous with
the rectrices so that the shape of the white wedge is truncated.
Hope this helps,
Rich
---
Rich Hoyer
Tucson, Arizona
Senior Field Leader
WINGS, Inc.
http://www.wingsbirds.com
---
[ << | >> | ^^ ]
Subject: migration patterns of N. RW Swallows
From: Jim Barton <redwingatfp1986(AT)COMCAST.NET>
Date: 9 Oct 2003 3:46pm
This is a multi-part message in MIME format.
----INCLUDING text/plain MIME SECTION----
Hello. What, if anything, is known about the migratiion patterns of =
N. Rough-winged Swallows? Where do they winter? Anywhere near S. RW =
SW?
Perhaps 10 years ago, I observed a large RW type swallow on a small =
pond in the Fresh Pond Reservation, in Cambridge MA. in company with N. =
RW SW. This small pond is visited by N. RW SW regularly in late April, =
in small numbers. The swallow presented a pale/white rump. Given the =
difficulty of observing swallows in flight, I made no decision on ID.=20
I know S. RW SW from the Yucatan. I could not reach any conclusions =
from that knowledge, when I saw the light-rumped bird at FP. =20
Yours,
Jim Barton
redwingatfp1986(AT)comcast.net
Cambridge, MA
US Coordinator, Proact
campaigning for birds and their habitats
before it's too late
www.proact-campaigns.net
----DELETED text/html MIME SECTION----
[ << | >> | ^^ ]
Subject: Re: Spizella head patterns
From: Matt Sharp <sharp(AT)ACNATSCI.ORG>
Date: 10 Oct 2003 12:41pm
>I annually get confused by fall Spizellas
I am glad Nick admitted to this confusion because I
have experienced here in the east in the fall several times
and I only have Chipping and Clay-colored to deal with.
>One question I'd like to clarify is whether Clay-colored Sparrows
>can ever lack a central crown stripe.
I checked specimens here at ANSP and of 25 Clay-colored
only 1, a Juv from Hand Co. Dakota Aug. 1879 lacked the
central crown stripe entirely. There were 4 others which
showed a very inconspicuous central stripe (narrow area
of slightly paler streaked feathers especially in the front)
of these 3 were July birds from Pemblina Dakota and 1 was
a March bird from Rio Grande TX.
>I did see a Chipping Sparrow that lack a dark line through
>the lores this fall as well, and suspect this may be fairly common.
I agree. And have had birds I wanted to call Clay-colored based
on the apparently pale lores which were probably just Chipping.
If I can I will try and post a few photos of Chipping with weak
stripes in the lores.
Best
Matt Sharp
Collection Manager
VIREO/ANS
1900 Benjamin Franklin Pkwy.
Philadelphia PA 19103
www.acnatsci.org/vireo
(tel.) 215-299-1069
(fax) 215-299-1182
[ << | >> | ^^ ]
Subject: Re: ID of Ridgway's Rough-winged Swallow: a
follow-up
From: Matt Sharp <sharp(AT)ACNATSCI.ORG>
Date: 10 Oct 2003 12:44pm
While looking at Sparrows I took a look at Rough-wings.
>One important piece of the puzzle is to establish the degree (if any) of
>variation in color/tone of the crissum in ridgwayi (literally - not
>stuarti), so if anyone with access to specimens could look into this and
>report back, I'd be very grateful - thank you.
I checked ANSP specimens of ridgwayi. We only have 2 both from the
Yucatan. They both matched the description from Phillips on Maritn's
website (pasted below). Though I did not make any measurements.
"Adults with longest pair of crissum feathers nearly always solidly sooty
subterminally (before the narrow white tip); this sooty patch extends entirely
across both feathers from edge to edge and along each feath
(maximum distance basad) 9.5mm or more. It strongly approaches Blackish Neutral
Gray (#82 of Smithe 1975)
[ << | >> | ^^ ]
Subject: Chipping Sparrows
From: Matt Sharp <sharp(AT)ACNATSCI.ORG>
Date: 10 Oct 2003 2:42pm
There is a small selection of Chipping Sparrow
images at the below URL with what I would call
weakly dark lores.
I am wondering if this and crown stripes on Clay-colored
could be effected by age and or moult.
Best
Matt Sharp
http://www.acnatsci.org/~wechsler/lightbox/ID-Front/Chipping%20Sparrows.html
[ << | >> | ^^ ]
Subject: Re: Spizella head patterns
From: Glenn A dEntremont <gdentremont(AT)JUNO.COM>
Date: 10 Oct 2003 6:39pm
I look at the lower border to the cheek patch on questionable
Chipping/Clay-colored. If it is bordered with a black line, then it is a
Clay-colored. If not, then Chipping. I have field tested this several
times via the rump, collar, etc. and seems to work. There is a different
facial expression given with or without this blackish line. The Chipping
shows a blending of the cheek with the throat, while the Clay-colored
shows an abrupt change here.
We only have Chipping/Clay-colored here in Massachusetts.
Is this mark definitive of Clay-colored?
Glenn
On Fri, 10 Oct 2003 14:59:02 -0400 Matt Sharp <sharp(AT)ACNATSCI.ORG>
writes:
> >I annually get confused by fall Spizellas
>
> I am glad Nick admitted to this confusion because I
> have experienced here in the east in the fall several times
> and I only have Chipping and Clay-colored to deal with.
>
Glenn d'Entremont
gdentremont(AT)juno.com
Stoughton, MA
[ << | >> | ^^ ]
Subject: Unidentified gadfly petrel from Hawaii
From: Angus Wilson <wilsoa02(AT)med.nyu.edu>
Date: 11 Oct 2003 12:45pm
Hi Everyone,
Peter Donaldson (coeditor for Hawaiian Islands section of North American
Birds) kindly sent me pictures of an interesting Pterodroma picked up
alive in Maui. Peter and the finders are being cautious about the
identification and would appreciate input from experienced observers of
Pacific gadfly petrels. Personally, I'm leaning to towards an immature
Stejneger's Petrel but have not had a chance to study the literature yet
(a neat escape clause in case I'm completely off track!).
I have posted the pictures with some of the back story on the following
web page:
http://www.oceanwanderers.com/MauiPetrel.html
Take a look and let us know what you think,
Cheers, Angus Wilson
New York City
http://www.oceanwanderers.com/
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