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Index of Subjects
major drought and the lack of rai
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Hi Lance and all,
Migration sure is fascinating; we are learning a lot, but still so many unk=
nowns. Thanks for taking the time to share and update us on the trends this=
year, and your general observations.
Carmel Smith
Midville Branch, NS=20
On Wednesday, September 14, 2016 11:27 AM, "rita.paul@ns.sympatico.ca" =
<rita.paul@ns.sympatico.ca> wrote:
=20
#yiv6829569558 #yiv6829569558 -- _filtered #yiv6829569558 {font-family:Bat=
ang;} _filtered #yiv6829569558 {} _filtered #yiv6829569558 {font-family:Cal=
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9569558 Interesting Lance so much to know about birds. Future birders w=
ill not run out of things to study soon!
Enjoy the last of summer
Paul
=C2=A0 =20
On September 13, 2016 at 5:04 PM "Laviolette, Lance" <lance.laviolette@lmc=
o.com> wrote:=20
=20
Hi everyone, =C2=A0 I=E2=80=99ve been on Brier Island for the past three =
weeks and I=E2=80=99d like to provide my take on some of the questions and =
comments about this year=E2=80=99s migration that have been brought up rece=
ntly. =C2=A0 Up to and including last week, I was still seeing extremely yo=
ung birds on the island. This means that young of species such as Golden-cr=
owned Kinglet were still fledging as recently as the last week of August. B=
lack-throated Green Warblers, Hermit Thrushes and Gray Catbirds fledged not=
much before that. This combined with the fact that the species composition=
of migrating birds was not entirely what we normally see during our time o=
n the island and I would say that migration is 5-7 days later than what I w=
ould expect at this time of year. This is probably due to a delay in the br=
eeding season brought about by the cold, wet June that was experienced in m=
uch of the Maritimes. =C2=A0 I expect that not all areas of the Maritimes =
were affected equally nor all species. This is simply a general observation=
. =C2=A0 I would also expect this delay to disappear as the later migrants=
begin to move. Fall migration is triggered by the angle of the sun and len=
gth of day and not availability of food. It will mostly be early migrants t=
hat have bred later in the year that will be affected. The young of later m=
igrants will have had more time to mature before their normal migration tim=
e is reached so they should leave pretty much when they normally would. =C2=
=A0 Cape May Warbler numbers have been rising steadily for the last few yea=
rs and this year they were way up. This appears to be a text book example o=
f a species which increases when the food it relies on increases. In this c=
ase the food is the Spruce Budworm and as you know, there is currently an o=
utbreak of Spruce Budworm in many areas of the Maritimes and the Gaspe. It =
is amazing to me at how quickly this warbler=E2=80=99s numbers have respond=
ed to the outbreak but it mimics what happened 40 years ago when the last o=
utbreak took place. =C2=A0 There were only two decent migration events duri=
ng the time I was on the island. They were on the weekend of August 27 and =
the weekend of September 10. These movements generally reflect cold fronts =
that move across the Maritimes which are followed by weather optimal to bir=
d migration. As you know, southwest NS is suffering from a major drought an=
d the lack of rain is symptomatic with the lack of this type of weather pat=
tern crossing the area. Without this type of event, birds generally move on=
ly slowly to the south. =C2=A0 Regarding Red-breasted Nuthatches, there wer=
e hundreds around Northern Point during the last two weeks of August and ce=
rtainly thousands on the island. They were still moving through, though in =
smaller numbers, the first full week of September. The last irruptions sout=
h of this species that I noted were in 2010 and to a lesser extent in 2012.=
Previous to this we were seeing peaks roughly every three years so we were=
overdue in NS. These irruptions coincide with a crash in the seed crop the=
y rely on in the conifer forest. =C2=A0 John=E2=80=99s nocturnal migration =
counts are fascinating to me as the composition of the species he sees are =
not necessarily the same as that which I see on Brier Island. Many interest=
ing questions are raised as a result. Most migration work is done at know m=
igration =E2=80=98traps=E2=80=99 such as Brier Island, Bon Portage and Seal=
Island. As he wrote, very little work has been done at interior sites to m=
onitor migration so this is ground-breaking information. =C2=A0 All the be=
st, =C2=A0 Lance =C2=A0 Lance Laviolette Glen Robertson, Ontario =C2=A0 =C2=
=A0 =C2=A0 From: naturens-owner@chebucto.ns.ca [mailto:naturens-owner@chebu=
cto.ns.ca] On Behalf Of Richard Stern
Sent: Sunday, August 21, 2016 3:17 PM
To: NatureNS <naturens@chebucto.ns.ca>
Subject: EXTERNAL: [NatureNS] Red-breasted nuthatch migration =C2=A0 Ther=
e were Red-breasted nuthatches all over Brier Island during my 3 day stay t=
here last week, and I counted 56 heading out over the ocean from N.Point in=
a 31 minute period around 9:30am yesterday. I suspect there would have bee=
n a lot more if I had got there earlier. I'm wondering how this correlates =
with John Kearney's nocturnal migration count, and also looking forward to =
hearing about Lance's banding numbers in a week or two.If you make some big=
assumptions about numbers per hour and the number of hours and days they m=
igrate, that adds up t an awful lot of nuthatches heading out. =C2=A0 Ri=
chard =C2=A0 -- #################
Richard Stern,=20
Port Williams, NS, Canada
sternrichard@gmail.com
################### =20
=20
=C2=A0 =20
=20
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<html><head></head><body><div style=3D"color:#000; background-color:#fff; f=
ont-family:verdana, helvetica, sans-serif;font-size:16px"><div id=3D"yui_3_=
16_0_ym19_1_1473864311550_6002"><span id=3D"yui_3_16_0_ym19_1_1473864311550=
_6019">Hi Lance and all,<br><br>Migration sure is fascinating; we are learn=
ing a lot, but still so many unknowns. Thanks for taking the time to share =
and update us on the trends this year, and your general observations.<br><b=
r>Carmel Smith<br>Midville Branch, NS</span></div> <div class=3D"qtdSeparat=
eBR"><br><br></div><div class=3D"yahoo_quoted" style=3D"display: block;"> <=
div style=3D"font-family: verdana, helvetica, sans-serif; font-size: 16px;"=
> <div style=3D"font-family: HelveticaNeue, Helvetica Neue, Helvetica, Aria=
l, Lucida Grande, sans-serif; font-size: 16px;"> <div dir=3D"ltr"><font siz=
e=3D"2" face=3D"Arial"> On Wednesday, September 14, 2016 11:27 AM, "rita.pa=
ul@ns.sympatico.ca" <rita.paul@ns.sympatico.ca> wrote:<br></font></di=
v> <br><br> <div class=3D"y_msg_container"><div id=3D"yiv6829569558"><styl=
e type=3D"text/css">#yiv6829569558 #yiv6829569558 -- _filtered #yiv682956=
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=20
<div>
<span style=3D"font-size:12pt;">Interesting Lance so much to know about =
birds.</span>
</div>=20
<div>
<span style=3D"font-size:12pt;">Future birders will not run out of thing=
s to study soon!<br clear=3D"none"></span>
</div>=20
<div>
<span style=3D"font-size:12pt;">Enjoy the last of summer<br clear=3D"non=
e"></span>
</div>=20
<div>
<span style=3D"font-size:12pt;">Paul<br clear=3D"none"></span>
</div>=20
<div>
<span style=3D"font-size:12pt;"> </span>
</div>=20
<div class=3D"yiv6829569558yqt1124380847" id=3D"yiv6829569558yqt75111"><b=
lockquote style=3D"padding-left:10px;margin-left:0px;border-left-color:blue=
;border-left-width:1px;border-left-style:solid;position:relative;" type=3D"=
cite">
=20
=20
=20
On September 13, 2016 at 5:04 PM "Laviolette, Lance" <lance.laviolet=
te@lmco.com> wrote:
<br clear=3D"none">
<br clear=3D"none">=20
<div class=3D"yiv6829569558WordSection1">=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;">Hi everyone,</span></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;"> </span></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;">I=E2=80=99ve been on Brier I=
sland for the past three weeks and I=E2=80=99d like to provide my take on s=
ome of the questions and comments about this year=E2=80=99s migration that =
have been brought up recently.</span></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;"> </span></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;">Up to and including last wee=
k, I was still seeing extremely young birds on the island. This means that =
young of species such as Golden-crowned Kinglet were still fledging as rece=
ntly as the last week of August. Black-throated Green Warblers, Hermit Thru=
shes and Gray Catbirds fledged not much before that. This combined with the=
fact that the species composition of migrating birds was not entirely what=
we normally see during our time on the island and I would say that migrati=
on is 5-7 days later than what I would expect at this time of year. This is=
probably due to a delay in the breeding season brought about by the cold, =
wet June that was experienced in much of the Maritimes. </span></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;"> </span></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;">I expect that not all areas =
of the Maritimes were affected equally nor all species. This is simply a ge=
neral observation. </span></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;"> </span></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;">I would also expect this del=
ay to disappear as the later migrants begin to move. Fall migration is trig=
gered by the angle of the sun and length of day and not availability of foo=
d. It will mostly be early migrants that have bred later in the year that w=
ill be affected. The young of later migrants will have had more time to mat=
ure before their normal migration time is reached so they should leave pret=
ty much when they normally would.</span></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;"> </span></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;">Cape May Warbler numbers hav=
e been rising steadily for the last few years and this year they were way u=
p. This appears to be a text book example of a species which increases when=
the food it relies on increases. In this case the food is the Spruce Budwo=
rm and as you know, there is currently an outbreak of Spruce Budworm in man=
y areas of the Maritimes and the Gaspe. It is amazing to me at how quickly =
this warbler=E2=80=99s numbers have responded to the outbreak but it mimics=
what happened 40 years ago when the last outbreak took place.</span></div>=
=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;"> </span></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;">There were only two decent m=
igration events during the time I was on the island. They were on the weeke=
nd of August 27 and the weekend of September 10. These movements generally =
reflect cold fronts that move across the Maritimes which are followed by we=
ather optimal to bird migration. As you know, southwest NS is suffering fro=
m a major drought and the lack of rain is symptomatic with the lack of this=
type of weather pattern crossing the area. Without this type of event, bir=
ds generally move only slowly to the south.</span></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;"> </span></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;">Regarding Red-breasted Nutha=
tches, there were hundreds around Northern Point during the last two weeks =
of August and certainly thousands on the island. They were still moving thr=
ough, though in smaller numbers, the first full week of September. The last=
irruptions south of this species that I noted were in 2010 and to a lesser=
extent in 2012. Previous to this we were seeing peaks roughly every three =
years so we were overdue in NS. These irruptions coincide with a crash in t=
he seed crop they rely on in the conifer forest.</span></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;"> </span></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;">John=E2=80=99s nocturnal mig=
ration counts are fascinating to me as the composition of the species he se=
es are not necessarily the same as that which I see on Brier Island. Many i=
nteresting questions are raised as a result. Most migration work is done at=
know migration =E2=80=98traps=E2=80=99 such as Brier Island, Bon Portage a=
nd Seal Island. As he wrote, very little work has been done at interior sit=
es to monitor migration so this is ground-breaking information. </span></di=
v>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;"> </span></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;">All the best,</span></div>=
=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;"> </span></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;">Lance</span></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;"> </span></div>=20
<div class=3D"yiv6829569558MsoNormal"><strong><span style=3D"color:#1f4=
97d;font-family:'Batang', serif;font-size:14pt;">Lance Laviolette</span></s=
trong></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Batang', serif;font-size:10pt;">Glen Robertson, Ontario</span></di=
v>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;"> </span></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;"> </span></div>=20
<div class=3D"yiv6829569558MsoNormal"><span style=3D"color:#1f497d;font=
-family:'Calibri', sans-serif;font-size:11pt;"> </span></div>=20
<div class=3D"yiv6829569558MsoNormal"><strong><span style=3D"font-famil=
y:'Calibri', sans-serif;font-size:11pt;">From:</span></strong><span style=
=3D"font-family:'Calibri', sans-serif;font-size:11pt;"> naturens-owner@cheb=
ucto.ns.ca [mailto:naturens-owner@chebucto.ns.ca] <strong>On Behalf Of </st=
rong>Richard Stern<br clear=3D"none"> <strong>Sent:</strong> Sunday, August=
21, 2016 3:17 PM<br clear=3D"none"> <strong>To:</strong> NatureNS <natu=
rens@chebucto.ns.ca><br clear=3D"none"> <strong>Subject:</strong> EXTERN=
AL: [NatureNS] Red-breasted nuthatch migration</span></div>=20
<div class=3D"yiv6829569558MsoNormal"> </div>=20
<div>=20
<div class=3D"yiv6829569558MsoNormal">There were Red-breasted nuthatch=
es all over Brier Island during my 3 day stay there last week, and I counte=
d 56 heading out over the ocean from N.Point in a 31 minute period around 9=
:30am yesterday. I suspect there would have been a lot more if I had got th=
ere earlier. I'm wondering how this correlates with John Kearney's nocturna=
l migration count, and also looking forward to hearing about Lance's bandin=
g numbers in a week or two.If you make some big assumptions about numbers p=
er hour and the number of hours and days they migrate, that adds up t an aw=
ful lot of nuthatches heading out.</div>=20
<div>=20
<div class=3D"yiv6829569558MsoNormal"> </div>=20
</div>=20
<div>=20
<div class=3D"yiv6829569558MsoNormal">Richard</div>=20
<div>=20
<div class=3D"yiv6829569558MsoNormal"> </div>=20
</div>=20
<div class=3D"yiv6829569558MsoNormal">--</div>=20
<div>=20
<div class=3D"yiv6829569558MsoNormal">#################<br clear=3D"=
none"> Richard Stern, <br clear=3D"none"> Port Williams, NS, Canada<br clea=
r=3D"none"> <a rel=3D"nofollow" shape=3D"rect" ymailto=3D"mailto:sternricha=
rd@gmail.com" target=3D"_blank" href=3D"mailto:sternrichard@gmail.com">ster=
nrichard@gmail.com</a><br clear=3D"none"> ###################</div>=20
</div>=20
</div>=20
</div>=20
</div>=20
</blockquote></div>=20
<div>
<br clear=3D"none">
</div>
=20
</div></div><br><br></div> </div> </div> </div></div></body></html>
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