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ID-FRONTIERS for July 1-8, 2006

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Messages are displayed in the order they were received.
 Subject From Date  Time 
 Re: Fw: "Junkin's" Warbler - apparent hybrid (a strange one!)  Dick Newell   Sat, 1 Jul 2006  12:50am 
 Re: Fw: "Junkin's" Warbler - apparent hybrid (a strange one!)  Ian Paulsen   Sat, 1 Jul 2006  9:44am 
 McCown's Longspur plumage question  Robert Hughes   Mon, 3 Jul 2006  3:54pm 
 Tropicbird  Trey Mitchell   Tue, 4 Jul 2006  11:07am 
 Link to photos of Tropicbird needing ID  Trey Mitchell   Tue, 4 Jul 2006  11:12am 
 More info about the Tropicbird  Trey Mitchell   Tue, 4 Jul 2006  12:05pm 
 Green-winged Teal photos  Martin Garner   Wed, 5 Jul 2006  2:40am 
 ID of Baikal Teal  Martin Reid   Wed, 5 Jul 2006  4:16am 
 Re: Green-winged Teal photos  Phil Davis   Wed, 5 Jul 2006  9:35am 
 Re: Link to photos of Tropicbird needing ID  Alvaro Jaramillo   Wed, 5 Jul 2006  10:00am 
 Re: Junkin's Warbler  =?ISO-8859-1?Q?Mark_  Wed, 5 Jul 2006  9:49pm 
 Re: Junkin's Warbler  Laurent Raty   Thu, 6 Jul 2006  1:44am 
 AOU Check List 47th Supplement published  Phil Davis   Thu, 6 Jul 2006  8:23pm 
 Re: Junkin's Warbler  Laurent Raty   Fri, 7 Jul 2006  12:58am 
 Junkin's Warbler  Doug Pratt   Fri, 7 Jul 2006  7:32am 
 Re: Junkin's Warbler  Gary L Felton   Fri, 7 Jul 2006  12:15pm 
To use email addresses replace '(AT)' with '@'.
This is done to confuse the spam 'bots.


[ << | >> | ^^ ] Subject: Re: Fw: "Junkin's" Warbler - apparent hybrid (a strange one!) From: Dick Newell <dick.newell(AT)ZEN.CO.UK> Date: 1 Jul 2006 12:50am In reply to Angus' question: provided that there is DNA to be extracted, then 1 feather is enough. It may also be worth collecting any droppings, as it is now possible to extract DNA from these (cells slough off the wall of the intestine). Two independent droppings samples of the Minsmere Curlew here in the UK both confirmed that the bird matched Eurasian Curlew, and did not match Slender-billed Curlew. There are a number of labs around who will analyse the mtDNA, giving you the mother of the hybrid. It might be a little trickier to find someone to analyse the nuclear DNA to give you the father. Ideally, any samples should be preserved in alcohol, which is very hard to obtain here in the UK. So, the next best thing, as Angus says, is to put them straight into a freezer (particularly droppings which degrade quickly), then identify your lab and ask them to send you some alcohol. Collecting droppings adds a new dimension to any difficult field identification! Dick Cambridge, UK Join or Leave BIRDWG01: http://listserv.arizona.edu/cgi-bin/wa?SUBED1=birdwg01 Archives: http://listserv.arizona.edu/archives/birdwg01.html
[ << | >> | ^^ ] Subject: Re: Fw: "Junkin's" Warbler - apparent hybrid (a strange one!) From: Ian Paulsen <birdbooker(AT)ZIPCON.NET> Date: 1 Jul 2006 9:44am HI: So I guess in the future, field guides will come with DNA sampling kits?! -- Ian Paulsen Bainbridge Island, WA, USA A.K.A.: "Birdbooker" "Rallidae all the way!" Join or Leave BIRDWG01: http://listserv.arizona.edu/cgi-bin/wa?SUBED1=birdwg01 Archives: http://listserv.arizona.edu/archives/birdwg01.html
[ << | >> | ^^ ] Subject: McCown's Longspur plumage question From: Robert Hughes <rhughes.enteract(AT)RCN.COM> Date: 3 Jul 2006 3:54pm On Saturday July 1 I saw and photographed a female-type McCown's Longspur in Sioux County Nebraska. What caught my eye about this bird was that the breast was heavily streaked. I don't have a lot of experience with McCown's Longspur but I was under the impression that adult females in alternate plumage don't have streaked breasts, so I was thinking that this bird is a juvenile. There were a number of adult McCown's in the area. I posted a photo of this individual on my Web site. http://theorniphile.info/rare_birds/mccowns_longspur.html Robert Hughes Chicago Join or Leave BIRDWG01: http://listserv.arizona.edu/cgi-bin/wa?SUBED1=birdwg01 Archives: http://listserv.arizona.edu/archives/birdwg01.html
[ << | >> | ^^ ] Subject: Tropicbird From: Trey Mitchell <trey(AT)PHOTOGRAPHWILDLIFE.COM> Date: 4 Jul 2006 11:07am This is a multi-part message in MIME format. ----INCLUDING text/plain MIME SECTION---- http://www.photographwildlife.com/images/FrontiersID/Tropicbird/tropicbird__ species.htm Photos of a tropicbird which we have question about the ID of this Juvenile bird. Either a White-tailed or Red-billed. Suggestions and help. Thanks, Trey Mitchell trey(AT)photographwildlife.com Join or Leave BIRDWG01: http://listserv.arizona.edu/cgi-bin/wa?SUBED1=birdwg01 Archives: http://listserv.arizona.edu/archives/birdwg01.html ----DELETED text/html MIME SECTION----
[ << | >> | ^^ ] Subject: Link to photos of Tropicbird needing ID From: Trey Mitchell <trey(AT)PHOTOGRAPHWILDLIFE.COM> Date: 4 Jul 2006 11:12am This is a multi-part message in MIME format. ----INCLUDING text/plain MIME SECTION---- http://www.photographwildlife.com/images/FrontiersID/tropicbird__species.htm Trying again to post the link to the photos. Join or Leave BIRDWG01: http://listserv.arizona.edu/cgi-bin/wa?SUBED1=birdwg01 Archives: http://listserv.arizona.edu/archives/birdwg01.html ----DELETED text/html MIME SECTION----
[ << | >> | ^^ ] Subject: More info about the Tropicbird From: Trey Mitchell <trey(AT)PHOTOGRAPHWILDLIFE.COM> Date: 4 Jul 2006 12:05pm This is a multi-part message in MIME format. ----INCLUDING text/plain MIME SECTION---- Sorry, I wasn't thinking. I took the photos and others made the visual observations. We saw the bird about 5 miles off Miami Florida in about 450ft of water Monday, July 3rd at about 11am. I initial ID was White-tailed Tropicbird since that is what we were looking for if we would be lucky enough to see one. But as we began putting together the flight description and having opportunity to view the photos, a question was raised to the possibility of it being a juvenile Red-billed. Below is one persons description of the birds flight. "I couldn't get a good look at the dorsal side or the eyebrow since I was busy driving the boat, but there is one field mark that the photos don't show: the flight. According to National Geographic, the Red-billed "Flies with rapid , stiff, shallow wingbeats, unlike other tropicbirds whose flight is more ternlike." This description matches 100% the flight of our bird. However, I would ask those with more experience with Tropicbirds if this flight characteristic is exclusive to the Red-billed, or do the White-tailed also exhibit this type of flight. Physically, I think it's a subadult White-tailed, but my sample set of Tropicbirds is 1." And here is another observation after seeing the photos. ""Guys, I hate asking this but I have to: Could this bird be a Red-billed Tropicbird (RBT) instead? We all got caught up in the excitement (I know I did) and we seemed pretty sure that this bird was a White-tailed Tropicbird (WTT). Remember this bird flew directly over us and Trey could not get a picture of its dorsal side. Now, speaking for myself, I've had zero experience with any of the three tropicbirds. I know Paul Bithorn has some and so I ask him to look at the photos carefully (not just the two that were posted but the rest). Here's the deal: It is obvious that the bird photographed has a yellow bill, but both the WTT's and the RBT's have yellow bills when juvenile and subadult. The size is relative, there's nothing to compare it to and we wouldn't be looking for a disproportionally large bill as say with a Red-tailed Tropicbird. I've searched images for several hours now and read literature which states the lack of knowledge on tropicbird plumages...what a shame. I've come across several images of subadult RBT's that match our bird, for example one off of North Carolina (just google it). Of course THAT bird could have been misidentified. That bird also exhibits the same black spot at the base of the tail as our bird. I haven't been able to see another photo online witht that field mark. Even though our bird is shown from a ventral view, it looks like the primary coverts could also be black. The photos I've seen of the WTT show an abrupt contrast between the black primaries and the white primary coverts, even when viewed from below. All I remember seeing of the bird's dorsal side is 'black on the tips'. Another field mark I did not think of looking at was to see if the black eyeline went across the nape (RBT's). Do any of you remember any of these field marks? How about the barring on the bird's back? I'm not trying to make the bird into something else. I just want everyone else's (everyone who was there) input on this and anyone with tropicbird experience can chip in also. I need to be sure!" Hope this helps Join or Leave BIRDWG01: http://listserv.arizona.edu/cgi-bin/wa?SUBED1=birdwg01 Archives: http://listserv.arizona.edu/archives/birdwg01.html ----DELETED text/html MIME SECTION----
[ << | >> | ^^ ] Subject: Green-winged Teal photos From: Martin Garner <martin.go(AT)VIRGIN.NET> Date: 5 Jul 2006 2:40am This is a multi-part message in MIME format. ----INCLUDING text/plain MIME SECTION---- Hi, A small request for help. Does anyone have/ know of good quality photos = of Green-winged Teals showing the wing spread at rest/ or in flight = (need to be close views). I am particularly interested in females/ = immatures for forthcoming article. Please reply privately thanks for any help Martin Garner Join or Leave BIRDWG01: http://listserv.arizona.edu/cgi-bin/wa?SUBED1=3Dbirdwg01 Archives: http://listserv.arizona.edu/archives/birdwg01.html ----DELETED text/html MIME SECTION----
[ << | >> | ^^ ] Subject: ID of Baikal Teal From: Martin Reid <upupa(AT)AIRMAIL.NET> Date: 5 Jul 2006 4:16am Dear all, I recently received my copy of NA Birds, and was intrigued to see the photo on page 119 of a Baikal Teal - apparently one of at least four seen - at Shemya, AK in late September. I was wondering if any of you felt that this bird is IDable from this photo? I presume that the observer(s) saw more than is visible in this photo in order to ID it as Baikal...maybe a good look at the open wing pattern? Note that the flank feather pattern is that of a juvenile, and that the bill seems to have a pale patch at the base - this last feature is oft-mentioned in ID tomes as a no-no for Baikal, but can anyone with experience of them comment on this? Cheers, Martin -- Martin Reid San Antonio, Texas mailto:upupa(AT)airmail.net http://www.martinreid.com Join or Leave BIRDWG01: http://listserv.arizona.edu/cgi-bin/wa?SUBED1=birdwg01 Archives: http://listserv.arizona.edu/archives/birdwg01.html
[ << | >> | ^^ ] Subject: Re: Green-winged Teal photos From: Phil Davis <pdavis(AT)IX.NETCOM.COM> Date: 5 Jul 2006 9:35am ----INCLUDING text/plain MIME SECTION---- Hi Martin: Try this link ... http://www.npwrc.usgs.gov/resource/birds/duckplum/gwteal.htm Hope it helps. Phil At 05:01 07/05/2006, Martin Garner wrote: >Hi, > >A small request for help. Does anyone have/ know of good quality photos of >Green-winged Teals showing the wing spread at rest/ or in flight (need to >be close views). I am particularly interested in females/ immatures for >forthcoming article. > >Please reply privately > >thanks for any help > >Martin Garner > >Join or Leave BIRDWG01: >http://listserv.arizona.edu/cgi-bin/wa?SUBED1=birdwg01 > >Archives: http://listserv.arizona.edu/archives/birdwg01.html ================================== Phil Davis Davidsonville, Maryland USA mailto:PDavis(AT)ix.netcom.com ================================== Join or Leave BIRDWG01: http://listserv.arizona.edu/cgi-bin/wa?SUBED1=birdwg01 Archives: http://listserv.arizona.edu/archives/birdwg01.html ----DELETED text/html MIME SECTION----
[ << | >> | ^^ ] Subject: Re: Link to photos of Tropicbird needing ID From: Alvaro Jaramillo <chucao(AT)COASTSIDE.NET> Date: 5 Jul 2006 10:00am This is a multi-part message in MIME format. ----INCLUDING text/plain MIME SECTION---- Trey =20 I don=92t have a definitive answer for the id of this bird, = although I lean toward Red-billed. Part of what makes me hesitant is that I am = unclear about geographic variation in White-tailed Tropicbird, particularly in = terms of the extent of black on the primaries. In Hawaii, White-tailed = Tropicbird (adults) have white primary tips. From beneath the wings appear to show = a dark wedge on the outer primaries, with a bright white tip to the wings. = I was looking at some of my photos, and some from the web, of White-tails = from the Caribbean and they may be variable. Some birds show dark going to = the tips of the primaries, shaped like sharp points, giving a =93toothed=94 appearance from below. Perhaps it is just an issue of the white tips becoming worn off on some individuals? Red-bills on the other hand have = more extensive black on the primaries, and no white tips. From beneath you = see translucent secondaries and inner primaries, and a dark area on the = outer wing that is pretty extensive. Your bird is not an adult, so this may = not apply, but some photos of young White-tails I have seen show a good = amount of white on the primary tips that your bird lacks, suggesting Red-billed = to me. As well, the bill looks pretty bulky in some views, again good for Red-billed.=20 By the way, bill color in White-tailed Tropicbird adults = shows some weird geographic variation. Birds in Hawaii and the rest of the = Pacific show the classic yellow bill. In Puerto Rico, they have bright = orange-red bills, but the two birds I have seen in Tobago (where a vagrant) showed yellow bills. Looking at photos on Brian Patteson=92s site = (patteson.com) some of his White-tailed Tropicbirds show orange bills, others show yellow = bills. =20 Regards =20 Al =20 Alvaro Jaramillo chucao(AT)coastside.net Half Moon Bay, CA =20 Field Guides - Birding Tours Worldwide http://www.fieldguides.com/home.htm =20 _____ =20 From: NBHC ID-FRONTIERS Frontiers of Field Identification [mailto:BIRDWG01(AT)LISTSERV.ARIZONA.EDU] On Behalf Of Trey Mitchell Sent: Tuesday, July 04, 2006 11:12 AM To: BIRDWG01(AT)LISTSERV.ARIZONA.EDU Subject: [BIRDWG01] Link to photos of Tropicbird needing ID =20 HYPERLINK "http://www.photographwildlife.com/images/FrontiersID/tropicbird__species= .ht m"http://www.photographwildlife.com/images/FrontiersID/tropicbird__specie= s.h tm =20 Trying again to post the link to the photos=85 Join or Leave BIRDWG01: http://listserv.arizona.edu/cgi-bin/wa?SUBED1=3Dbirdwg01=20 Archives: http://listserv.arizona.edu/archives/birdwg01.html=20 -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.9.8/381 - Release Date: 7/3/2006 --=20 No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.9.9/382 - Release Date: 7/4/2006 =20 Join or Leave BIRDWG01: http://listserv.arizona.edu/cgi-bin/wa?SUBED1=3Dbirdwg01 Archives: http://listserv.arizona.edu/archives/birdwg01.html ----DELETED text/html MIME SECTION----
[ << | >> | ^^ ] Subject: Re: Junkin's Warbler From: =?ISO-8859-1?Q?Mark_Brown?= <lawoffmarkbrown(AT)VERIZON.NET> Date: 5 Jul 2006 9:49pm All: Re: Junkin’s Warbler; hybrid vireo? Hi. My name is Mark Brown and I have a hybrid addiction. I have been looking for a modern version of Annie P. Gray’s Bird Hybrids, A Check-List with Bibliography. I think I have found something better. There is a new book out called Handbook of Avian Hybrids of the World (2006) (Oxford University Press) by Eugene McCarthy. Mr. McCarthy’s kindly responded to my question’s on the Junkin’s Warbler. His thoughts follow: There have been no reports of hybrids between wood warblers and vireos. This is not to say that it is impossible, but there have been no such reports. Indeed, all of the reported crosses for vireos (genus Vireo) have been intrageneric. Many intergeneric crosses have been reported for wood warblers, but none with birds outside the family (Parulidae). Far more crosses have been reported for wood warblers (more than 70 different kinds) than for vireos (only 4 kinds). With regard to the mystery bird pictured on Dave Junkin's website (www.home.eznet.net/~kfox/wny/junkin/junkin.htm), my bet is on Mourning Warbler x Common Yellowthroat (Oporornis philadelphia x Geothlypis trichas). In the on-line discussion (http://listserv.arizona.edu/cgi-bin/wa? A1=ind0606e&L=birdwg01) Kevin McGowan of Cornell Laboratory of Ornithology guessed that the mystery bird was a Canada x Mourning Warbler. However, he also noted that it is similar to the Mourning Warbler x Common Yellowthroat described by Bledsoe 1988 (Wilson Bulletin, vol. 100, pp. 1-8). I list this hybrid in my book. Bledsoe includes a watercolor of this hybrid. It doesn't exactly match the hybrid pictured on Dave's site, but it comes close. Actually, watercolors of the two parents look rather different from typical Mourning Warbler and Common Yellowthroat. But judge for yourself--you can see the pictures on line: (http://elibrary.unm.edu/sora/Wilson/v100n01/index.php). The main point of interest with regard to Bledsoe's report is that, although, the throats are yellow in both O. philadelphia and G. trichas, the hybrid had a white throat flecked with gray. Bledsoe does not mention the fact, but the non- intermediate throat color could be explained on the genetic level by positing that throat pigment is controlled by recessive genes at distinct loci in O. philadelphia and G. trichas (this is the mechanism that is thought to underlie the not intermediate traits seen in hybrids of the Blue- and Golden-winged warblers). The white eye-rings and supralorals are adequately explained in my mind by a comment made by David Sibley, who notes (Guide to Birds, 2000, p. 452) that occasional Common Yellowthroats "show yellow supraloral and/or broken whitish eye-ring." The yellowthroat variant that he pictures shows an eye-ring and supraloral pattern very similar to that of the hybrid on Dave Junkin's site. However, the yellowthroat supraloral pictured by Sibley is yellow. Again, though, the pigmentation of this region may have been changed to white in the hybrid by the same genetic mechanism that presumably explains the white coloration of the throat. I also notice that facial pigment of the bird pictured on Dave's site is darkest in the same region where the head of a Common Yellow throat is black, but elsewhere is a gray that closely matches O. philadelphia. As regards the suggestion that the bird might be a hybrid of a Blue-headed Vireo and a Mourning Warbler, I can't really go along with this. In my book I do list some rather bizarre hybrids produced by interbreeding between birds that are considered very distantly related, but the vast majority of hybrids are produced from crosses between fairly closely related birds. In identifying naturally occurring specimens like this, I think it's best to stick with the hybrids that are known, Indeed, one of the reasons that I wrote my book was to provide a comprehensive list of all known crosses, so that in situations like this the number of candidates can be narrowed down. This is not to say that new kinds of hybrids are never reported. I'd say there are several new ones reported each month. But to accept a report of a previously unknown hybrid between distantly related birds, I would need stronger evidence than morphological intermediacy. In such cases, controlled captive matings, DNA testing, or an observation of the putative parents nesting together in the wild (or a combination of such evidence) would be required. Gene McCarthy Regards, Mark Brown Santa Maria, CA 93454 Join or Leave BIRDWG01: http://listserv.arizona.edu/cgi-bin/wa?SUBED1=birdwg01 Archives: http://listserv.arizona.edu/archives/birdwg01.html
[ << | >> | ^^ ] Subject: Re: Junkin's Warbler From: Laurent Raty <l.raty(AT)SKYNET.BE> Date: 6 Jul 2006 1:44am Hi, For those with an interest in hybrids, the 'Bird hybrids search engine' compiled by Serge Dumont also provides a very good start, though it gives only references and do not discuss the cases, and of course it is most probably not as up-to-date as a book published in 2006. It is available here : http://www.bird-hybrids.com/ With regards to Canada x Mourning Warbler hybridisation : Bledsoe (1988 : 5), in the discussion following his description of the Yellowthroat x Mourning hybrid, cites this combination. The citation is made in a way that suggests that there has been no publication, but that there is a specimen at the USNM. It would obviously be interesting to know how this bird looked. Cheers, Laurent - Laurent Raty Brussels, Belgium l.raty(AT)skynet.be ----- Original Message ----- From: "Mark Brown" <lawoffmarkbrown(AT)VERIZON.NET> To: <BIRDWG01(AT)LISTSERV.ARIZONA.EDU> Sent: Thursday, July 06, 2006 6:38 AM Subject: Re: [BIRDWG01] Junkin's Warbler > All: > > Re: Junkin's Warbler; hybrid vireo? > > Hi. My name is Mark Brown and I have a hybrid addiction. I have been looking > for a modern version of Annie P. Gray's Bird Hybrids, A Check-List with > Bibliography. I think I have found something better. There is a new book out > called Handbook of Avian Hybrids of the World (2006) (Oxford University > Press) by Eugene McCarthy. Mr. McCarthy's kindly responded to my question's > on the Junkin's Warbler. His thoughts follow: > > There have been no reports of hybrids between wood warblers and vireos. This > is not to say that it is impossible, but there have been no such reports. > Indeed, all of the reported crosses for vireos (genus Vireo) have been > intrageneric. Many intergeneric crosses have been reported for wood > warblers, but none with birds outside the family (Parulidae). Far more > crosses have been reported for wood warblers (more than 70 different kinds) > than for vireos (only 4 kinds). > > With regard to the mystery bird pictured on Dave Junkin's website > (www.home.eznet.net/~kfox/wny/junkin/junkin.htm), my bet is on Mourning > Warbler x Common Yellowthroat (Oporornis philadelphia x Geothlypis trichas). > In the on-line discussion (http://listserv.arizona.edu/cgi-bin/wa? > A1=ind0606e&L=birdwg01) Kevin McGowan of Cornell Laboratory of Ornithology > guessed that the mystery bird was a Canada x Mourning Warbler. > However, he also noted that it is similar to the Mourning Warbler x Common > Yellowthroat described by Bledsoe 1988 (Wilson Bulletin, vol. 100, pp. 1-8). > I list this hybrid in my book. Bledsoe includes a watercolor of this hybrid. > It doesn't exactly match the hybrid pictured on Dave's site, but it comes > close. Actually, watercolors of the two parents look rather different from > typical Mourning Warbler and Common Yellowthroat. But judge for > yourself--you can see the pictures on line: > (http://elibrary.unm.edu/sora/Wilson/v100n01/index.php). > > The main point of interest with regard to Bledsoe's report is that, > although, the throats are yellow in both O. philadelphia and G. trichas, the > hybrid had a white throat flecked with gray. Bledsoe does not mention the > fact, but the non- intermediate throat color could be explained on the > genetic level by positing that throat pigment is controlled by recessive > genes at distinct loci in O. > philadelphia and G. trichas (this is the mechanism that is thought to > underlie the not intermediate traits seen in hybrids of the Blue- and > Golden-winged warblers). > > The white eye-rings and supralorals are adequately explained in my mind by a > comment made by David Sibley, who notes (Guide to Birds, 2000, p. 452) that > occasional Common Yellowthroats "show yellow supraloral and/or broken > whitish eye-ring." The yellowthroat variant that he pictures shows an > eye-ring and supraloral pattern very similar to that of the hybrid on Dave > Junkin's site. > However, the yellowthroat supraloral pictured by Sibley is yellow. Again, > though, the pigmentation of this region may have been changed to white in > the hybrid by the same genetic mechanism that presumably explains the white > coloration of the throat. I also notice that facial pigment of the bird > pictured on Dave's site is darkest in the same region where the head of a > Common Yellow throat is black, but elsewhere is a gray that closely matches > O. philadelphia. > > As regards the suggestion that the bird might be a hybrid of a Blue-headed > Vireo and a Mourning Warbler, I can't really go along with this. In my book > I do list some rather bizarre hybrids produced by interbreeding between > birds that are considered very distantly related, but the vast majority of > hybrids are produced from crosses between fairly closely related birds. > > In identifying naturally occurring specimens like this, I think it's best to > stick with the hybrids that are known, Indeed, one of the reasons that I > wrote my book was to provide a comprehensive list of all known crosses, so > that in situations like this the number of candidates can be narrowed down. > This is not to say that new kinds of hybrids are never reported. I'd say > there are several new ones reported each month. But to accept a report of a > previously unknown hybrid between distantly related birds, I would need > stronger evidence than morphological intermediacy. In such cases, controlled > captive matings, DNA testing, or an observation of the putative parents > nesting together in the wild > (or a combination of such evidence) would be required. > > Gene McCarthy > > Regards, > > Mark Brown > Santa Maria, CA 93454 > > > Join or Leave BIRDWG01: http://listserv.arizona.edu/cgi-bin/wa?SUBED1=birdwg01 > > Archives: http://listserv.arizona.edu/archives/birdwg01.html > > > Join or Leave BIRDWG01: http://listserv.arizona.edu/cgi-bin/wa?SUBED1=birdwg01 Archives: http://listserv.arizona.edu/archives/birdwg01.html
[ << | >> | ^^ ] Subject: AOU Check List 47th Supplement published From: Phil Davis <pdavis(AT)IX.NETCOM.COM> Date: 6 Jul 2006 8:23pm Birders: The 47th Supplement to the AOU Check List is now available on the AOU web site, here ... http://www.aou.org/checklist/Suppl47.pdf Phil ================================== Phil Davis Davidsonville, Maryland USA mailto:PDavis(AT)ix.netcom.com ================================== Join or Leave BIRDWG01: http://listserv.arizona.edu/cgi-bin/wa?SUBED1=birdwg01 Archives: http://listserv.arizona.edu/archives/birdwg01.html
[ << | >> | ^^ ] Subject: Re: Junkin's Warbler From: Laurent Raty <l.raty(AT)SKYNET.BE> Date: 7 Jul 2006 12:58am Dear all, Michel Gosselin, who is not a member of this list, just let me know that pictures of another probable Mourning Warbler x Common Yellowthroat hybrid can be seen here : http://www.oiseauxqc.org/parulhyb.html Cheers, Laurent - Join or Leave BIRDWG01: http://listserv.arizona.edu/cgi-bin/wa?SUBED1=birdwg01 Archives: http://listserv.arizona.edu/archives/birdwg01.html
[ << | >> | ^^ ] Subject: Junkin's Warbler From: Doug Pratt <Doug.Pratt(AT)NCMAIL.NET> Date: 7 Jul 2006 7:32am Hello everyone: Why has no one suggested Canada x Connecticut as the parentage of this hybrid? The bird is almost exactly intermediate between these two. Connecticut would explain the white throat, and other features are a good combo of facial and other features. In any case, I think Canada has to be one parent; the bird just has too many Canada features. Doug Pratt -- H. Douglas Pratt, Curator of Birds Research and Collections North Carolina Museum of Natural Sciences 11 West Jones Street Raleigh, NC 27601-1029 Phone: (919)733-7450 ext. 728 E-mail: doug.pratt(AT)ncmail.net Join or Leave BIRDWG01: http://listserv.arizona.edu/cgi-bin/wa?SUBED1=birdwg01 Archives: http://listserv.arizona.edu/archives/birdwg01.html
[ << | >> | ^^ ] Subject: Re: Junkin's Warbler From: Gary L Felton <gljeinwv(AT)JUNO.COM> Date: 7 Jul 2006 12:15pm Doug, One of my initial guesses was Mourning/Chat cross. I'm now inclined towards Mourning/Canada cross. In regards to your question, I felt the underside was too intensely yellow for Connecticut. I haven't looked at the photo lately, but if I remember correctly, the back was too greenish for Connecticut. Gary Felton Kingwood, WV On Fri, 7 Jul 2006 10:32:34 -0400 Doug Pratt <Doug.Pratt(AT)NCMAIL.NET> writes: > Hello everyone: > > Why has no one suggested Canada x Connecticut as the parentage > of > this hybrid? The bird is almost exactly intermediate between these > > two. Connecticut would explain the white throat, and other features > are > a good combo of facial and other features. In any case, I think > Canada > has to be one parent; the bird just has too many Canada features. > > Doug Pratt > > -- > H. Douglas Pratt, Curator of Birds > Research and Collections > North Carolina Museum of Natural Sciences > 11 West Jones Street > Raleigh, NC 27601-1029 > Phone: (919)733-7450 ext. 728 > E-mail: doug.pratt(AT)ncmail.net > > > Join or Leave BIRDWG01: > http://listserv.arizona.edu/cgi-bin/wa?SUBED1=birdwg01 > > Archives: http://listserv.arizona.edu/archives/birdwg01.html > > Join or Leave BIRDWG01: http://listserv.arizona.edu/cgi-bin/wa?SUBED1=birdwg01 Archives: http://listserv.arizona.edu/archives/birdwg01.html

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