[NatureNS] Spring first arrivals

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From: nancy dowd <nancypdowd@gmail.com>
Date: Mon, 19 Mar 2018 07:04:16 -0300
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These no doubt are Spring First Arrivals, arriving via the route you mention=
ed. So I will use this opportunity to clarify some of the reasoning behind t=
he species list on the NSBS Spring First Arrivals table. http://www.nsbirdso=
ciety.ca/library/resources/spring-first-arrivals

The reason these species are not part of this NSBS dataset: We have excluded=
 species who have significant overwintering populations in some part of NS (=
see Conclusion section below table), to reduce any entries that require assu=
mptions on our part. For example, did those RB Gulls get blown in from a nea=
rby wintering population? Or were the Lesser Black-backs (always a tongue tw=
ister) ones already present in SW NS (probably not)? Even Baltimore Orioles g=
ot nixed due to ambiguity.=20

NatureNS will be getting regular updates on Spring First Arrivals as the mig=
ration season progresses. So please post any sightings.=20

Nancy

Sent from my iPad

> On Mar 18, 2018, at 9:07 PM, Eric Mills <E.Mills@Dal.Ca> wrote:
>=20
> Two that I believe qualify, with my justification:
>=20
> Ring-billed Gull - March 18. 10 bright full adults roosting with Herring G=
ulls off Privateer Park, Liverpool, Queens Co., were not present earlier. Th=
roughout the winter 1-2 Ring-bills, usually first-winter (occasionally adult=
s) have been present.
>=20
> Lesser Black-backed Gull - March 11. An adult graellsii arrived among roos=
ting Herring and Greater Black-backed Gulls off Privateer Park, Liverpool, Q=
ueens Co., slept for a while, and then headed off seaward. The timing is con=
sistent with northward movement from wintering areas in the southeastern USA=
 (likely toward nesting areas in W Greenland or Iceland, although no doubt b=
y easy stages so early in the season).
>=20
> Eric Mills
>=20

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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto">These no doubt are Spring First Arrivals, a=
rriving via the route you mentioned. So I will use this opportunity to clari=
fy some of the reasoning behind the species list on the NSBS Spring First Ar=
rivals table.&nbsp;<a href=3D"http://www.nsbirdsociety.ca/library/resources/=
spring-first-arrivals" style=3D"background-color: rgba(255, 255, 255, 0);"><=
font color=3D"#000000">http://www.nsbirdsociety.ca/library/resources/spring-=
first-arrivals</font></a><div><br></div><div>The reason these species are no=
t part of this NSBS dataset: We have excluded species who have significant o=
verwintering populations in some part of NS (see Conclusion section below ta=
ble), to reduce any entries that require assumptions on our part. For exampl=
e, did those RB Gulls get blown in from a nearby wintering population? Or we=
re the Lesser Black-backs (always a tongue twister) ones already present in S=
W NS (probably not)? Even Baltimore Orioles got nixed due to ambiguity.&nbsp=
;</div><div><br></div><div>NatureNS will be getting regular updates on Sprin=
g First Arrivals as the migration season progresses. So please post any sigh=
tings.&nbsp;</div><div><div><br></div><div>Nancy<br><br><div id=3D"AppleMail=
Signature">Sent from my iPad</div><div><br>On Mar 18, 2018, at 9:07 PM, Eric=
 Mills &lt;E.Mills@Dal.Ca&gt; wrote:<b=
r><br></div><blockquote type=3D"cite"><div>

<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859-1=
">



<div id=3D"divtagdefaultwrapper" style=3D"font-size:12pt;color:#000000;font-=
family:Calibri,Helvetica,sans-serif;" dir=3D"ltr">
<p style=3D"margin-top:0;margin-bottom:0">Two that I believe qualify, with m=
y justification:</p>
<p style=3D"margin-top:0;margin-bottom:0"><br>
</p>
<p style=3D"margin-top:0;margin-bottom:0">Ring-billed Gull - March 18. 10 br=
ight full adults roosting with Herring Gulls off Privateer Park, Liverpool, Q=
ueens Co., were not present earlier. Throughout the winter 1-2 Ring-bills, u=
sually first-winter (occasionally
 adults) have been present.</p>
<p style=3D"margin-top:0;margin-bottom:0"><br>
</p>
<p style=3D"margin-top:0;margin-bottom:0">Lesser Black-backed Gull - March 1=
1. An adult
<i>graellsii</i> arrived among roosting Herring and Greater Black-backed Gul=
ls off Privateer Park, Liverpool, Queens Co., slept for a while, and then he=
aded off seaward. The timing is consistent with northward movement from wint=
ering areas in the southeastern
 USA (likely toward nesting areas in W Greenland or Iceland, although no dou=
bt by easy stages so early in the season).</p>
<p style=3D"margin-top:0;margin-bottom:0"><br>
</p>
<p style=3D"margin-top:0;margin-bottom:0">Eric Mills<br>
</p>
<p style=3D"margin-top:0;margin-bottom:0"><br>
</p>
</div>


</div></blockquote></div></div></body></html>=

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