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Index of Subjects Hi All, Mar 30, 2013 I takes a while for animals to respond to new opportunity. Traffic and roadkill have increased many-fold over the last 50 years. Is roadkill a significant portion of their diet ? Yt, Dave Webster, Kentville ----- Original Message ----- From: "John and Nhung" <nhungjohn@eastlink.ca> To: <naturens@chebucto.ns.ca> Sent: Saturday, March 30, 2013 12:46 PM Subject: RE: [NatureNS] Turkey Vultures > Interesting hypothesis. > > "Ours" remained relatively uncommon till 2000 or so. When I came home on > leave for a month in the summer in the '90's, a sighting was still > noteworthy, but sightings were becoming gradually more frequent. By the > winter of 2003-04, my first real winter home, they were pretty regular at > certain favorite locations. > > Winters have been warming gradually over the past couple or three decades. > I'm not sure if the more rapid increase a decade-odd ago had anything to > do > with winter temperatures or if it was just part of the exponential phase > of > a sigmoid curve. Missed opportunity for an interesting graduate thesis, > eh? > > -----Original Message----- > From: naturens-owner@chebucto.ns.ca [mailto:naturens-owner@chebucto.ns.ca] > On Behalf Of Fred Schueler > Sent: March-30-13 11:57 AM > To: naturens@chebucto.ns.ca > Subject: Re: [NatureNS] Turkey Vultures > > Quoting nancy dowd <nancypdowd@gmail.com>: > >> In Bernd Heinrich's newer book (Life Everlasting: The Animal Way of >> Death) the author suggests Turkey Vultures have steadily expanded >> their range northwards because carcasses are no longer frozen >> completely solid during the milder winters in New England allowing a >> large population to remain year round. > > * that may work for New England, but it seems to me that there's also very > increased seasonal and breeding migration into Ontario - > http://karstaddailypaintings.blogspot.ca/2012/04/jills-barn-5-x-7-in.html > - > but this would have to be measured north of Bernd's "frozen carcass" > isotherm. > > fred. > ------------------------------------------------------------ > Frederick W. Schueler & Aleta Karstad > Bishops Mills Natural History Centre - http://pinicola.ca/bmnhc.htm > Mudpuppy Night in Oxford Mills - http://pinicola.ca/mudpup1.htm > Daily Paintings - http://karstaddailypaintings.blogspot.com/ > South Nation Basin Art & Science Book > http://pinicola.ca/books/SNR_book.htm > RR#2 Bishops Mills, Ontario, Canada K0G 1T0 > on the Smiths Falls Limestone Plain 44* 52'N 75* 42'W > (613)258-3107 <bckcdb at istar.ca> http://pinicola.ca/ > ------------------------------------------------------------ > > > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2013.0.3267 / Virus Database: 3161/6212 - Release Date: 03/29/13 >
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