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--Apple-Mail=_CC2827D5-6934-406F-BE42-E83660139EFA Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 I=92ll go along with James=92s comment below and throw in a = multisyllabic term from way back when I was learning ornithology: = testicular recrudescence =97 refers to renewed activity of the testes re = new quantities of testosterone, also affected by changes in day-length = and cooling of average temperatures etc., in turn causing =93spring-like = behaviours=94 such as autumnal singing. I=92ll also go along with = Fred=92s comment about this being functional in helping juvenile males = learn the species-appropriate songs. Enjoy the imminent autumn!=20 Cheers from Jim in Wolfville. Begin forwarded message: > From: James Churchill <jameslchurchill@gmail.com> > Subject: Re: [NatureNS] red-eyed vireo singing the past 4 mornings as = if springtime > Date: August 31, 2015 at 9:40:19 AM ADT > To: naturens <naturens@chebucto.ns.ca> > Reply-To: naturens@chebucto.ns.ca >=20 > An over-simplified version of the story here, but...males in a number = of temperate-breeding songbird species experience seasonal fluctuations = in testosterone levels that often correlate with song production and = levels of parental care: increases of plasma testosterone in the spring = correlate with increased song production, reduced levels in late = breeding stages (e.g., the nestling period) can correlate with increased = male parental care (e.g., feeding of young), and then some males/species = experience another small increase in testosterone levels later in the = season which correlates with increased singing activity again this time = of year (though most birds are very quiet now). There are many = additional factors in play such as photoperiod, life history traits and = mating systems of different species, nest success etc... > james >=20 > On Sun, Aug 30, 2015 at 1:24 PM, Donna Crossland = <dcrossland@eastlink.ca> wrote: > I have awoken the past four mornings with a persistently singing = Red-eyed vireo, always from the same location. It=92s as if it is = springtime again. It=92s lovely, but a little confusing. We had a pair = earlier in the season in this same location who presumably nested. = Territorial singing long since stopped sometime last July.=20 >=20 > =20 >=20 > Has anyone else experienced this species (or other species?) = conducting this behavior in late August? I presume it is a juvenile = male who has gotten ahead of himself. Any other explanations?=20 >=20 > =20 >=20 > Hopefully he=92ll stop soon and remember to migrate. >=20 > =20 >=20 > Donna Crossland >=20 > =20 >=20 > From: naturens-owner@chebucto.ns.ca = [mailto:naturens-owner@chebucto.ns.ca] On Behalf Of Jim Wolford > Sent: August-30-15 11:58 AM > To: naturens > Subject: [NatureNS] re unknown nest >=20 > =20 >=20 > Dave and all, your side view definitely shows it to be a vireo nest, = and the habitat suggests almost certainly a red-eyed vireo built it. = Cheers from Jim in Wolfville. >=20 > =20 >=20 > Begin forwarded message: >=20 >=20 >=20 >=20 > From: David & Alison Webster <dwebster@glinx.com> >=20 > Subject: Re: [NatureNS] unknown nest >=20 > Date: August 30, 2015 at 9:14:57 AM ADT >=20 > To: naturens@chebucto.ns.ca >=20 > Reply-To: naturens@chebucto.ns.ca >=20 > =20 >=20 > Thanks Bev & Judy. > DW > ----- Original Message ----- From: "Bev Wigney" <bkwigney@gmail.com> > To: <naturens@chebucto.ns.ca> > Sent: Saturday, August 29, 2015 8:50 PM > Subject: Re: [NatureNS] unknown nest >=20 >=20 >=20 >=20 > Dave and all, >=20 > I would guess that would be a Vireo nest. Seabrooke Leckie wrote a = post about them on her blog (she's from back in the part of Ontario = where I come from). She's one of the co-authors of the new Peterson's = moth guide, by the way. Anyhow, take a look at the photos here. Most = birch nests I've seen -- vireo nests -- were usually built in the fork = of a branch and fastened to it almost as if by birch strip strapping. = They are usually about head height. > http://seabrookeleckie.com/2011/03/03/vireo-nest/ >=20 > regards, > Bev Wigney > Round Hill, NS >=20 >=20 > On 2015-08-29, at 8:26 PM, David & Alison Webster <dwebster@glinx.com> = wrote: >=20 >=20 >=20 > Dear All, Aug 29, 2015 > This nest was in White Pine woods (Cambridge woodlot), about 5'4" up = in a maple branch, clearly this year's but unoccupied and about 7cm in = length and diameter (external). It was overhanging a woods road and = right in the open. Body was mostly strips of inner bark fiber interwoven = with white birch curls (none nearby), twigs (?) and kleenex (?). Lining = was mostly White Pine needles. > Perhaps someone can put a name to this. > Top view > = https://www.flickr.com/photos/91817127@N08/20366053034/in/dateposted-publi= c/ >=20 > Side view > = https://www.flickr.com/photos/91817127@N08/20367594653/in/dateposted-publi= c/ >=20 > YT, DW, Kentville >=20 >=20 >=20 > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2015.0.6125 / Virus Database: 4409/10538 - Release Date: = 08/29/15 >=20 > =20 >=20 > =20 >=20 >=20 >=20 >=20 > --=20 > James Churchill > Kentville, Nova Scotia > jameslchurchill@gmail.com > (902) 681-2374 >=20 >=20 >=20 --Apple-Mail=_CC2827D5-6934-406F-BE42-E83660139EFA Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=windows-1252 <html><head><meta http-equiv=3D"Content-Type" content=3D"text/html = charset=3Dwindows-1252"></head><body style=3D"word-wrap: break-word; = -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">I=92ll = go along with James=92s comment below and throw in a multisyllabic term = from way back when I was learning ornithology: testicular recrudescence = =97 refers to renewed activity of the testes re new quantities of = testosterone, also affected by changes in day-length and cooling of = average temperatures etc., in turn causing =93spring-like behaviours=94 = such as autumnal singing. I=92ll also go along with Fred=92s = comment about this being functional in helping juvenile males learn the = species-appropriate songs. Enjoy the imminent = autumn! <div><br></div><div>Cheers from Jim in = Wolfville.<br><div><br><div>Begin forwarded message:</div><br = class=3D"Apple-interchange-newline"><blockquote type=3D"cite"><div = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px;"><span style=3D"font-family:'Helvetica'; color:rgba(0, = 0, 0, 1.0);"><b>From: </b></span><span = style=3D"font-family:'Helvetica';">James Churchill <<a = href=3D"mailto:jameslchurchill@gmail.com">jameslchurchill@gmail.com</a>>= ;<br></span></div><div style=3D"margin-top: 0px; margin-right: 0px; = margin-bottom: 0px; margin-left: 0px;"><span = style=3D"font-family:'Helvetica'; color:rgba(0, 0, 0, 1.0);"><b>Subject: = </b></span><span style=3D"font-family:'Helvetica';"><b>Re: [NatureNS] = red-eyed vireo singing the past 4 mornings as if = springtime</b><br></span></div><div style=3D"margin-top: 0px; = margin-right: 0px; margin-bottom: 0px; margin-left: 0px;"><span = style=3D"font-family:'Helvetica'; color:rgba(0, 0, 0, 1.0);"><b>Date: = </b></span><span style=3D"font-family:'Helvetica';">August 31, 2015 at = 9:40:19 AM ADT<br></span></div><div style=3D"margin-top: 0px; = margin-right: 0px; margin-bottom: 0px; margin-left: 0px;"><span = style=3D"font-family:'Helvetica'; color:rgba(0, 0, 0, 1.0);"><b>To: = </b></span><span style=3D"font-family:'Helvetica';">naturens <<a = href=3D"mailto:naturens@chebucto.ns.ca">naturens@chebucto.ns.ca</a>><br= ></span></div><div style=3D"margin-top: 0px; margin-right: 0px; = margin-bottom: 0px; margin-left: 0px;"><span = style=3D"font-family:'Helvetica'; color:rgba(0, 0, 0, = 1.0);"><b>Reply-To: </b></span><span style=3D"font-family:'Helvetica';"><a= = href=3D"mailto:naturens@chebucto.ns.ca">naturens@chebucto.ns.ca</a><br></s= pan></div><br><div><div dir=3D"ltr">An over-simplified version of the = story here, but...males in a number of temperate-breeding songbird = species experience seasonal fluctuations in testosterone levels that = often correlate with song production and levels of parental care: = increases of plasma testosterone in the spring correlate with increased = song production, reduced levels in late breeding stages (e.g., the = nestling period) can correlate with increased male parental care (e.g., = feeding of young), and then some males/species experience another small = increase in testosterone levels later in the season which correlates = with increased singing activity again this time of year (though most = birds are very quiet now). There are many additional factors in play = such as photoperiod, life history traits and mating systems of different = species, nest success = etc...<div><div>james</div><div><br></div><div><div = class=3D"gmail_extra"><div class=3D"gmail_quote">On Sun, Aug 30, 2015 at = 1:24 PM, Donna Crossland <span dir=3D"ltr"><<a = href=3D"mailto:dcrossland@eastlink.ca" = target=3D"_blank">dcrossland@eastlink.ca</a>></span> = wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px = 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left= -style:solid;padding-left:1ex"><div lang=3D"EN-CA" link=3D"blue" = vlink=3D"purple"><p class=3D"MsoNormal"><span = style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125= )">I have awoken the past four mornings with a persistently singing = Red-eyed vireo, always from the same location. It=92s as if it is = springtime again. It=92s lovely, but a little confusing. We = had a pair earlier in the season in this same location who presumably = nested. Territorial singing long since stopped sometime last = July. <u></u><u></u></span></p><p class=3D"MsoNormal"><span = style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125= )"><u></u> <u></u></span></p><p class=3D"MsoNormal"><span = style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125= )">Has anyone else experienced this species (or other species?) = conducting this behavior in late August? I presume it is a = juvenile male who has gotten ahead of himself. Any other = explanations? <u></u><u></u></span></p><p class=3D"MsoNormal"><span = style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125= )"><u></u> <u></u></span></p><p class=3D"MsoNormal"><span = style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125= )">Hopefully he=92ll stop soon and remember to = migrate.<u></u><u></u></span></p><p class=3D"MsoNormal"><span = style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125= )"><u></u> <u></u></span></p><p class=3D"MsoNormal"><span = style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125= )">Donna Crossland<u></u><u></u></span></p><p class=3D"MsoNormal"><span = style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125= )"><u></u> <u></u></span></p><div><div style=3D"border-style:solid = none = none;border-top-color:rgb(181,196,223);border-top-width:1pt;padding:3pt = 0cm 0cm"><p class=3D"MsoNormal"><b><span lang=3D"EN-US" = style=3D"font-size:10pt;font-family:Tahoma,sans-serif">From:</span></b><sp= an lang=3D"EN-US" style=3D"font-size:10pt;font-family:Tahoma,sans-serif"> = <a href=3D"mailto:naturens-owner@chebucto.ns.ca" = target=3D"_blank">naturens-owner@chebucto.ns.ca</a> [mailto:<a = href=3D"mailto:naturens-owner@chebucto.ns.ca" = target=3D"_blank">naturens-owner@chebucto.ns.ca</a>] <b>On Behalf Of = </b>Jim Wolford<br><b>Sent:</b> August-30-15 11:58 AM<br><b>To:</b> = naturens<br><b>Subject:</b> [NatureNS] re unknown = nest<u></u><u></u></span></p></div></div><p = class=3D"MsoNormal"><u></u> <u></u></p><p class=3D"MsoNormal">Dave = and all, your side view definitely shows it to be a vireo nest, and the = habitat suggests almost certainly a red-eyed vireo built it. = Cheers from Jim in Wolfville.<u></u><u></u></p><div><p = class=3D"MsoNormal"><u></u> <u></u></p><div><p = class=3D"MsoNormal">Begin forwarded message:<u></u><u></u></p></div><p = class=3D"MsoNormal"><br><br><u></u><u></u></p><div><p = class=3D"MsoNormal"><b><span = style=3D"font-family:Helvetica,sans-serif">From: </span></b><span = style=3D"font-family:Helvetica,sans-serif">David & Alison Webster = <<a href=3D"mailto:dwebster@glinx.com" = target=3D"_blank">dwebster@glinx.com</a>></span><u></u><u></u></p></div= ><div><p class=3D"MsoNormal"><b><span = style=3D"font-family:Helvetica,sans-serif">Subject: Re: [NatureNS] = unknown nest</span></b><u></u><u></u></p></div><div><p = class=3D"MsoNormal"><b><span = style=3D"font-family:Helvetica,sans-serif">Date: </span></b><span = style=3D"font-family:Helvetica,sans-serif">August 30, 2015 at 9:14:57 AM = ADT</span><u></u><u></u></p></div><div><p class=3D"MsoNormal"><b><span = style=3D"font-family:Helvetica,sans-serif">To: </span></b><span = style=3D"font-family:Helvetica,sans-serif"><a = href=3D"mailto:naturens@chebucto.ns.ca" = target=3D"_blank">naturens@chebucto.ns.ca</a></span><u></u><u></u></p></di= v><div><p class=3D"MsoNormal"><b><span = style=3D"font-family:Helvetica,sans-serif">Reply-To: </span></b><span = style=3D"font-family:Helvetica,sans-serif"><a = href=3D"mailto:naturens@chebucto.ns.ca" = target=3D"_blank">naturens@chebucto.ns.ca</a></span><u></u><u></u></p></di= v><p class=3D"MsoNormal"><u></u> <u></u></p><div><p = class=3D"MsoNormal">Thanks Bev & Judy.<br>DW<br>----- Original = Message ----- From: "Bev Wigney" <<a href=3D"mailto:bkwigney@gmail.com"= target=3D"_blank">bkwigney@gmail.com</a>><br>To: <<a = href=3D"mailto:naturens@chebucto.ns.ca" = target=3D"_blank">naturens@chebucto.ns.ca</a>><br>Sent: Saturday, = August 29, 2015 8:50 PM<br>Subject: Re: [NatureNS] unknown = nest<br><br><br><br><u></u><u></u></p><p class=3D"MsoNormal">Dave and = all,<br><br>I would guess that would be a Vireo nest. Seabrooke = Leckie wrote a post about them on her blog (she's from back in the part = of Ontario where I come from). She's one of the co-authors of the = new Peterson's moth guide, by the way. Anyhow, take a look at the = photos here. Most birch nests I've seen -- vireo nests -- were = usually built in the fork of a branch and fastened to it almost as if by = birch strip strapping. They are usually about head height.<br><a = href=3D"http://seabrookeleckie.com/2011/03/03/vireo-nest/" = target=3D"_blank">http://seabrookeleckie.com/2011/03/03/vireo-nest/</a><br= ><br>regards,<br>Bev Wigney<br>Round Hill, NS<br><br><br>On 2015-08-29, = at 8:26 PM, David & Alison Webster <<a = href=3D"mailto:dwebster@glinx.com" = target=3D"_blank">dwebster@glinx.com</a>> = wrote:<br><br><br><u></u><u></u></p><p class=3D"MsoNormal" = style=3D"margin-bottom:12pt">Dear All, = &n= bsp; &nbs= p; Aug 29, 2015<br> This nest = was in White Pine woods (Cambridge woodlot), about 5'4" up in a maple = branch, clearly this year's but unoccupied and about 7cm in length and = diameter (external). It was overhanging a woods road and right in the = open. Body was mostly strips of inner bark fiber interwoven with white = birch curls (none nearby), twigs (?) and kleenex (?). Lining was mostly = White Pine needles.<br> Perhaps someone can put a name to = this.<br>Top view<br><a = href=3D"https://www.flickr.com/photos/91817127@N08/20366053034/in/datepost= ed-public/" = target=3D"_blank">https://www.flickr.com/photos/91817127@N08/20366053034/i= n/dateposted-public/</a><br><br>Side view<br><a = href=3D"https://www.flickr.com/photos/91817127@N08/20367594653/in/datepost= ed-public/" = target=3D"_blank">https://www.flickr.com/photos/91817127@N08/20367594653/i= n/dateposted-public/</a><br><br>YT, DW, Kentville<u></u><u></u></p><p = class=3D"MsoNormal"><br><br>-----<br>No virus found in this = message.<br>Checked by AVG - <a href=3D"http://www.avg.com/" = target=3D"_blank">www.avg.com</a><br>Version: 2015.0.6125 / Virus = Database: 4409/10538 - Release Date: 08/29/15<u></u><u></u></p><p = class=3D"MsoNormal"><u></u> <u></u></p></div></div><p = class=3D"MsoNormal"><u></u> <u></u></p></div></blockquote></div><br><= br clear=3D"all"><div><br></div>-- <br><div><div dir=3D"ltr">James = Churchill<br>Kentville, Nova Scotia<br><a = href=3D"mailto:jameslchurchill@gmail.com" = target=3D"_blank">jameslchurchill@gmail.com</a><br><a = href=3D"tel:%28902%29%20681-2374" value=3D"+19026812374" = target=3D"_blank">(902) 681-2374</a><br><br><br><br></div></div> </div></div></div></div> </div></blockquote></div><br></div></body></html>= --Apple-Mail=_CC2827D5-6934-406F-BE42-E83660139EFA--
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