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Hi everyone,
As Jim has written, the Blackpoll Warbler represents another example of just
how incredible bird migration is. Blackpoll Warbers take advantage of
prevailing winds to offset some of the energy costs of migration. Birds that
fly over Nova Scotia probably originate from as far northwest as the Yukon
and perhaps Alaska. The currently accepted hypothesis is that blackpolls fly
southeast, usually timing their movements so that they have a tail wind
blowing out of the northwest, and head out over the Atlantic Ocean. Near
the Tropic of Cancer they encounter the Trade Winds. These winds blow from
the northeast. The Blackpoll Warblers turn southwest (now with a northeast
tail winds) and head in the southwesterly direction until they reach
northern South America.
All the best,
Lance
========================
Lance Laviolette
Glen Robertson, Ontario
========================
From: naturens-owner@chebucto.ns.ca [mailto:naturens-owner@chebucto.ns.ca]
On Behalf Of James W. Wolford
Sent: September-12-09 10:39 PM
To: naturens@chebucto.ns.ca
Cc: Peter Hicklin
Subject: [NatureNS] re blackpoll warbler's migratory route -- was White-eyed
Vireo and lots of warblers
Hans' mention of migrant blackpoll warblers reminds me of an interpretation
sign that Pat & I see where we have been walking over the past week, in
Burns Lake, central B.C. (west of Prince George). The sign mentions that
these tiny warblers are known to migrate huge distances over water
(comparable to the semipalmated sandpipers, which are much better equipped
for rapid sustained flight over 48-72 or more hours) for five thousand
kilometres or more, from Canada's east coast to northern South America.
Pretty amazing for a tiny warbler!
Cheers from Jim from Wolfville, now in Burns Lake, B.C..
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<body lang=3DEN-CA link=3Dblue vlink=3Dpurple style=3D'word-wrap: =
break-word;
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<div class=3DSection1>
<p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hi everyone,<o:p></o:p></span></p>
<p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>As Jim has written, the Blackpoll Warbler represents =
another
example of just how incredible bird migration is. Blackpoll Warbers take
advantage of prevailing winds to offset some of the energy costs of =
migration. Birds
that fly over Nova Scotia probably originate from as far northwest as =
the Yukon
and perhaps Alaska. The currently accepted hypothesis is that blackpolls =
fly
southeast, usually timing their movements so that they have a tail wind =
blowing
out of the northwest, and head out over the Atlantic Ocean. Near =
the
Tropic of Cancer they encounter the Trade Winds. These winds blow from =
the northeast.
The Blackpoll Warblers turn southwest (now with a northeast tail winds) =
and
head in the southwesterly direction until they reach northern South =
America.<o:p></o:p></span></p>
<p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>All the best,<o:p></o:p></span></p>
<p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Lance<o:p></o:p></span></p>
<p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=3DMsoNormal><span =
style=3D'font-family:"Arial","sans-serif";color:#1F497D'>=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<o:p></o:p></span><=
/p>
<p class=3DMsoNormal><span =
style=3D'font-family:"Arial","sans-serif";color:#1F497D'>Lance
Laviolette<o:p></o:p></span></p>
<p class=3DMsoNormal><span =
style=3D'font-family:"Arial","sans-serif";color:#1F497D'>Glen
Robertson, Ontario<o:p></o:p></span></p>
<p class=3DMsoNormal><span =
style=3D'font-family:"Arial","sans-serif";color:#1F497D'>=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<o:p></o:p></span><=
/p>
<p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt =
0cm 0cm 0cm'>
<p class=3DMsoNormal><b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> naturens-owner@chebucto.ns.ca
[mailto:naturens-owner@chebucto.ns.ca] <b>On Behalf Of </b>James W. =
Wolford<br>
<b>Sent:</b> September-12-09 10:39 PM<br>
<b>To:</b> naturens@chebucto.ns.ca<br>
<b>Cc:</b> Peter Hicklin<br>
<b>Subject:</b> [NatureNS] re blackpoll warbler's migratory route -- was
White-eyed Vireo and lots of warblers<o:p></o:p></span></p>
</div>
</div>
<p class=3DMsoNormal><o:p> </o:p></p>
<p class=3DMsoNormal>Hans' mention of migrant blackpoll warblers reminds =
me of an
interpretation sign that Pat & I see where we have been walking over =
the
past week, in Burns Lake, central B.C. (west of Prince George). =
The sign
mentions that these tiny warblers are known to migrate huge distances =
over
water (comparable to the semipalmated sandpipers, which are much better
equipped for rapid sustained flight over 48-72 or more hours) for five =
thousand
kilometres or more, from Canada's east coast to northern South America. =
Pretty
amazing for a tiny warbler! <o:p></o:p></p>
<div>
<p class=3DMsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=3DMsoNormal>Cheers from Jim from Wolfville, now in Burns Lake, =
B.C..<o:p></o:p></p>
<div>
<p class=3DMsoNormal><o:p> </o:p></p>
<div>
<p class=3DMsoNormal>Begin forwarded message:<o:p></o:p></p>
</div>
<p class=3DMsoNormal><br>
<br>
<span =
style=3D'font-size:13.5pt;font-family:"Helvetica","sans-serif";color:blac=
k'><o:p></o:p></span></p>
</div>
<p class=3DMsoNormal><o:p> </o:p></p>
</div>
</div>
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