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Hi Carmel and all,
Thank you for your interest and support for my nocturnal migration =
studies. I very much appreciate feedback and discussion on this work.
=20
It has been a rough autumn for long-distance migrants. Hurricanes =
Harvey, Irma, and Maria had huge impacts on stop-over and wintering =
habitats in Texas, Louisiana, Florida, and the Caribbean. And now we had =
this late October storm that drove birds far north of their destinations =
in South America and the Caribbean. These storm-related impacts of =
climate change are just beginning to be researched, and there are not =
many studies about the strategies and survival rates of storm-swept =
birds. However, the few studies we have indicate that birds face an =
up-hill struggle in getting themselves back on track.
=20
Since the vagrants from our recent fallout have dispersed since their =
initial arrival, it likely that the continued operation of my monitoring =
stations would have yielded little new information on these birds. The =
monitoring stations sample relatively small areas of the sky overhead =
and the number of records greatly diminishes as the density of migration =
decreases. Nonetheless, I agree with you that it would be interesting to =
monitor into November. My main concern at this point is the protection =
of my monitoring equipment. With the onset of colder temperatures and =
higher winds in October, I generally start to dismantle my remote =
monitoring stations just after 15 October. Near freezing temperatures =
shorten battery run-times and can damage recording equipment. With the =
loss of foliage, the microphones are more vulnerable to driving rain and =
the station is more detectable to animals that like to chew or otherwise =
investigate new things in their environment. It is my hope that there =
will be more weather-resistant and more easily replaceable equipment in =
the future.
=20
As you indicate, I believe that eBird will be the best source for =
documenting the movements of vagrants in the wake of this fallout. The =
Nova Scotia Facebook page has also become an important source of =
information from a much broader spectrum of bird enthusiasts.
=20
Thanks again!
John
=20
From: naturens-owner@chebucto.ns.ca =
[mailto:naturens-owner@chebucto.ns.ca] On Behalf Of Carmel Smith
Sent: November-05-17 14:18
To: naturens@chebucto.ns.ca
Subject: Re: [NatureNS] Nocturnal Migration for the 4th Week of October
=20
Hi John,
=20
It's unfortunate that the winds forecast necessitated the take-down of =
the monitoring equipment! It would be amazing to find out more about how =
the fallout birds leave. Questions such as: When they leave, answering =
questions of how long they hang on in the province after landing; What =
routes they take to leave; How they leave--whether there is a mass =
outflow or do they just straggle along as they leave?=20
I also wonder how the familiarity of the territory affects how they =
leave? In other words, we have no reason to believe--as far as I can =
tell--that the birds which have ended up here have ever been to this =
area. Some of them perhaps, but the fact they end up here in this =
situation wouldn't have any bearing on where these individuals have =
their breeding grounds. Does familiarity with the territory influence =
how swiftly they can recover and find their way back on a track to their =
normal wintering grounds? The Magnolias in your last report, are they =
back on track quickly because they are individuals who were breeding =
here? Were they swept in from a nearer area than all the catbirds, =
tanagers, grosbeaks, etc.?
All questions I ponder... and have to say, your last reports gave a =
glimpse...but how much more we could learn if the stations were still up =
and we could see more of their migration, since they are still here. The =
reports are still coming in, and as people move away from the hotspots =
and check other areas, they are discovering more birds in pockets where =
they find suitable cover and food. These areas are not always right at =
the coast, though often within several km of the ocean. I hope the data =
being accumulated will be examined for these facts as well (where the =
birds found a spot to recover and how they move out from there--ebird =
being a major data source for this). Though the lack of birders--except =
for those who frequent the hotspots and check out areas already reported =
to harbour vagrants--will mean many are missed. At least until they end =
up in one of the funnels in the Southwest; hopefully the diligence of =
birders in the exit areas will give a good snapshot of the departure =
patterns.=20
=20
Which brings me back to my original thought--how awesome it would be to =
be able to have nocturnal migration records of their movements!=20
John, are there any stations still in operation?
=20
thanks again for your dedicated work!
Carmel Smith
Midville Branch, L'burg County, NS
=20
On Sunday, November 5, 2017, 1:32:52 PM AST, John Kearney < =
<mailto:john.kearney@ns.sympatico.ca> john.kearney@ns.sympatico.ca> =
wrote:=20
=20
=20
Hi All,
The last report for this year=E2=80=99s autumn nocturnal migration in =
Yarmouth County is posted on my webpage at the following links.
=20
Carleton: <http://johnfkearney.com/Carleton_Yarmouth_County_2017.html> =
http://johnfkearney.com/Carleton_Yarmouth_County_2017.html
=20
Cape Forchu: =
http://johnfkearney.com/Cape_Forchu_Yarmouth_County_2017.html
=20
Although migration volume was low this week, the report provides some =
data on the historic fallout of 26-30 October from a nocturnal =
perspective.
=20
John
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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'>Hi Carmel and =
all,<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'>Thank you for your interest and =
support for my nocturnal migration studies. I very much appreciate =
feedback and discussion on this work.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:EN-US'>It has been =
a rough autumn for long-distance migrants. Hurricanes Harvey, Irma, and =
Maria had huge impacts on stop-over and wintering habitats in Texas, =
Louisiana, Florida, and the Caribbean. And now we had this late October =
storm that drove birds far north of their destinations in South America =
and the Caribbean. These storm-related impacts of climate change are =
just beginning to be researched, and there are not many studies about =
the strategies and survival rates of storm-swept birds. However, the few =
studies we have indicate that birds face an up-hill struggle in getting =
themselves back on track.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:EN-US'>Since the =
vagrants from our recent fallout have dispersed since their initial =
arrival, it likely that the continued operation of my monitoring =
stations would have yielded little new information on these birds. The =
monitoring stations sample relatively small areas of the sky overhead =
and the number of records greatly diminishes as the density of migration =
decreases. Nonetheless, I agree with you that it would be interesting to =
monitor into November. My main concern at this point is the protection =
of my monitoring equipment. With the onset of colder temperatures and =
higher winds in October, I generally start to dismantle my remote =
monitoring stations just after 15 October. Near freezing temperatures =
shorten battery run-times and can damage recording equipment. With the =
loss of foliage, the microphones are more vulnerable to driving rain and =
the station is more detectable to animals that like to chew or otherwise =
investigate new things in their environment. It is my hope that there =
will be more weather-resistant and more easily replaceable equipment in =
the future.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:EN-US'>As you =
indicate, I believe that eBird will be the best source for documenting =
the movements of vagrants in the wake of this fallout. The Nova Scotia =
Facebook page has also become an important source of information from a =
much broader spectrum of bird enthusiasts.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:EN-US'>Thanks =
again!<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'> John<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><di=
v style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm'><p class=3DMsoNormal><b><span =
lang=3DEN-US>From:</span></b><span lang=3DEN-US> =
naturens-owner@chebucto.ns.ca [mailto:naturens-owner@chebucto.ns.ca] =
<b>On Behalf Of </b>Carmel Smith<br><b>Sent:</b> November-05-17 =
14:18<br><b>To:</b> naturens@chebucto.ns.ca<br><b>Subject:</b> Re: =
[NatureNS] Nocturnal Migration for the 4th Week of =
October<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p> </o:p></p><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Verdana",sans-serif'>Hi =
John,<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Verdana",sans-serif'><o:p> </=
o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Verdana",sans-serif'>It's =
unfortunate that the winds forecast necessitated the take-down of the =
monitoring equipment! It would be amazing to find out more about how the =
fallout birds leave. Questions such as: When they leave, answering =
questions of how long they hang on in the province after landing; What =
routes they take to leave; How they leave--whether there is a mass =
outflow or do they just straggle along as they leave? <br><br>I =
also wonder how the familiarity of the territory affects how they leave? =
In other words, we have no reason to believe--as far as I can tell--that =
the birds which have ended up here have ever been to this area. Some of =
them perhaps, but the fact they end up here in this situation wouldn't =
have any bearing on where these individuals have their breeding grounds. =
Does familiarity with the territory influence how swiftly they can =
recover and find their way back on a track to their normal wintering =
grounds? The Magnolias in your last report, are they back on track =
quickly because they are individuals who were breeding here? Were they =
swept in from a nearer area than all the catbirds, tanagers, grosbeaks, =
etc.?<br><br>All questions I ponder... and have to say, your last =
reports gave a glimpse...but how much more we could learn if the =
stations were still up and we could see more of their migration, since =
they are still here. The reports are still coming in, and as people move =
away from the hotspots and check other areas, they are discovering more =
birds in pockets where they find suitable cover and food. These areas =
are not always right at the coast, though often within several km of the =
ocean. I hope the data being accumulated will be examined for these =
facts as well (where the birds found a spot to recover and how they move =
out from there--ebird being a major data source for this). Though the =
lack of birders--except for those who frequent the hotspots and check =
out areas already reported to harbour vagrants--will mean many are =
missed. At least until they end up in one of the funnels in the =
Southwest; hopefully the diligence of birders in the exit areas will =
give a good snapshot of the departure patterns. <br> <br>Which =
brings me back to my original thought--how awesome it would be to be =
able to have nocturnal migration records of their =
movements! <br><br>John, are there any stations still in =
operation?<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Verdana",sans-serif'><o:p> </=
o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Verdana",sans-serif'>thanks again =
for your dedicated work!<br><br>Carmel =
Smith<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Verdana",sans-serif'>Midville =
Branch, L'burg County, NS<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Verdana",sans-serif'><o:p> </=
o:p></span></p></div><div id=3D"yahoo_quoted_0783012682"><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'>On Sunday, November 5, 2017, 1:32:52 PM AST, John Kearney =
<</span><a href=3D"mailto:john.kearney@ns.sympatico.ca"><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif'>john.kearne=
y@ns.sympatico.ca</span></a><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'>> wrote: <o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'><o:p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'><o:p> </o:p></span></p></div><div><div =
id=3Dyiv0293837509><div><div><p class=3Dyiv0293837509msonormal><span =
style=3D'color:#26282A'>Hi All,</span><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'><o:p></o:p></span></p><p class=3Dyiv0293837509msonormal><span =
style=3D'color:#26282A'>The last report for this year=E2=80=99s autumn =
nocturnal migration in Yarmouth County is posted on my webpage at the =
following links.</span><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'><o:p></o:p></span></p><p class=3Dyiv0293837509msonormal><span =
style=3D'color:#26282A'> </span><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'><o:p></o:p></span></p><p class=3Dyiv0293837509msonormal><span =
lang=3DES-MX style=3D'color:#26282A'>Carleton: </span><a =
href=3D"http://johnfkearney.com/Carleton_Yarmouth_County_2017.html" =
target=3D"_blank"><span =
lang=3DES-MX>http://johnfkearney.com/Carleton_Yarmouth_County_2017.html</=
span></a><span lang=3DES-MX =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'><o:p></o:p></span></p><p class=3Dyiv0293837509msonormal><span =
lang=3DES-MX style=3D'color:#26282A'> </span><span lang=3DES-MX =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'><o:p></o:p></span></p><p class=3Dyiv0293837509msonormal><span =
style=3D'color:#26282A'>Cape Forchu: </span><a =
href=3D"http://johnfkearney.com/Cape_Forchu_Yarmouth_County_2017.html" =
target=3D"_blank">http://johnfkearney.com/Cape_Forchu_Yarmouth_County_201=
7.html</a><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'><o:p></o:p></span></p><p class=3Dyiv0293837509msonormal><span =
style=3D'color:#26282A'> </span><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'><o:p></o:p></span></p><p class=3Dyiv0293837509msonormal><span =
style=3D'color:#26282A'>Although migration volume was low this week, the =
report provides some data on the historic fallout of 26-30 October from =
a nocturnal perspective.</span><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'><o:p></o:p></span></p><p class=3Dyiv0293837509msonormal><span =
style=3D'color:#26282A'> </span><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'><o:p></o:p></span></p><p class=3Dyiv0293837509msonormal><span =
style=3D'color:#26282A'>John</span><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'><o:p></o:p></span></p></div></div></div></div></div></div></div></div>=
</body></html>
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