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Hi Rick and all,
That=E2=80=99s an interesting comment about how the arrival of herons =
and egrets in March were similar to what one can see with a hurricane. I =
just finished checking the weather systems in March, and there were two =
that could have brought migrating egrets/herons to Nova Scotia. Both =
systems had an =E2=80=9Ceye=E2=80=9D with calm winds at surface levels. =
The first one would have picked up birds off the southeast coast of the =
United States on the morning of March 12. If the birds were able to keep =
up with the speed of the eye, they would have been deposited in =
Shelburne County on March 14 at 6:00 am (42 to 48 hours in flight). The =
second low formed on the morning of March 21 off North Carolina but did =
not form a typical eye. Rather there was a long tongue of calm weather =
sandwiched between opposing high winds with the tongue extending out in =
the Atlantic south of Nova Scotia. This tongue eventually twisted =
northward and would have deposited birds just east of Halifax at about =
3:00 PM on 22 March (about 32 hours in flight). If this analysis is =
correct, the birds would not have received any wind assistance in flying =
such a distance. But herons and egrets are good gliders, and this might =
explain their ability to keep up with the eye/tongue in near calm winds.
The Black-crowned Night Heron on March 1 doesn=E2=80=99t fit into either =
of these scenarios.
John
=20
From: naturens-owner@chebucto.ns.ca <naturens-owner@chebucto.ns.ca> On =
Behalf Of Rick Whitman
Sent: Saturday, March 31, 2018 20:15
To: naturens <naturens@chebucto.ns.ca>
Subject: Re: [NatureNS] Super early BC Night Heron
=20
Just to add to Wayne's comments about carriage of these herons by major =
air movements, if you check eBird today, March 31, the most northerly =
Little Blue Heron in the eastern US is in Connecticut, seen yesterday. =
The second most northerly is in New Jersey, also seen yesterday. (These =
would be "approved" reports.)
=20
The most northerly Tricolored Herons in the eastern US are also in New =
Jersey, about seven birds seen Mar 29-31.
=20
Both species will eventually reach sw Maine or n Mass. as the limits of =
their breeding range, so these birds in the US are still heading N under =
normal migration patterns. The transfer that occurred a week or so ago =
was pretty much similar to what happens during hurricanes.
=20
Regards,
Rick Whitman
=20
On 28 March 2018 at 14:01, Wayne P. Neily <Neilyornis@hotmail.com =
<mailto:Neilyornis@hotmail.com> > wrote:
Hello Nancy,
=20
This and the other egrets found more recently in NS are likely carried =
here from the Middle Atlantic States by the massive movements of air =
associated with storms. Most of the 12-15 in NS, Newfoundland, and St. =
Pierre seem to have been carried here by a major air movement from North =
Carolina out into the Atlantic looping back here last Friday and =
Saturday. I don't know whether you are counting these as first migrants =
or not, but there are likely more out there, if we could scour all the =
likely spots.
=20
Wayne P. Neily=20
Tremont, Kings Co., Nova Scotia
=20
Those who care about the future, make E.I.A.* part of every decision or =
plan they make. -=20
* =3D Environmental Impact Assessment (size appropriate to the =
significance of the plan or action).
=20
=20
_____ =20
From: naturens-owner@chebucto.ns.ca =
<mailto:naturens-owner@chebucto.ns.ca> <naturens-owner@chebucto.ns.ca =
<mailto:naturens-owner@chebucto.ns.ca> > on behalf of nancy dowd =
<nancypdowd@gmail.com <mailto:nancypdowd@gmail.com> >
Sent: March 28, 2018 07:14
To: naturens@chebucto.ns.ca <mailto:naturens@chebucto.ns.ca>=20
Subject: [NatureNS] Super early BC Night Heron=20
=20
An imm Black-crowned Night Heron seen on Mar 1 in downtown Sydney! A =
photo was recently posted on the NSBS Facebook page. Here is a link =
https://www.facebook.com/groups/114204608605113?view=3Dpermalink =
<https://www.facebook.com/groups/114204608605113?view=3Dpermalink&id=3D23=
47801488578736> &id=3D2347801488578736=20
=
<https://www.facebook.com/groups/114204608605113?view=3Dpermalink&id=3D23=
47801488578736> Log into Facebook | Facebook
www.facebook.com <http://www.facebook.com>=20
Log into Facebook to start sharing and connecting with your friends, =
family, and people you know.
=20
(Not sure if this will work if you are not on FB though.)
=20
An exceptional find in any case. So far, 2018 NS overshooting Waders =
have been very early compared to the past four years =
http://www.nsbirdsociety.ca/library/resources/spring-first-arrivals
=20
Nancy
Sent from my iPad
=20
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