next message in archive
next message in thread
previous message in archive
previous message in thread
Index of Subjects
Index of Subjects
This is a multipart message in MIME format.
------=_NextPart_000_0001_01D5E188.A52CB4B0
Content-Type: text/plain;
charset="us-ascii"
Content-Transfer-Encoding: 7bit
Hi Donna and all,
This kind of census has a great appeal to me. I don't participate in the
nocturnal owl studies sponsored by Birds Canada since I don't agree with
disturbing and agitating breeding birds that may result from the requirement
to broadcast recordings of owl calls. So many studies of birds, in the name
of conservation, are stressing birds through capture, tagging, and playback.
Studies are beginning to show that stress during the breeding season from
human-generated sources can affect not only breeding success but long-term
physiological health.
A new project, called Listening Together, in Southwest Nova Scotia, is
developing a survey method that people could use to replace the Birds Canada
survey method. This method involves the placement of inexpensive but
programmable recording devices along an owl survey route. This method
enables the survey participant to listen on a more frequent basis for the
presence of owls on the route without disturbing the owls. The project is
also working on methods to detect the presence of owl calls in the recording
automatically and even identify the species. These more advanced features
will take more time to develop but I'm hoping to have automatic identifiers
for a few species-at-risk, Canada Warbler, Olive-sided Flycatcher, and Rusty
Blackbird, in the next few months. These identifiers will be useful for
confirming the breeding presence of these species-at-risk in woodlands. I
hope to have recording devices, called AudioMoths, available to borrow by
conservation groups by early April. Unfortunately, the coronavirus may delay
the arrival of my order since China produces the circuit boards. Listening
Together is funded by Environment and Climate Change Canada, Nova Scotia
Lands and Forestry, and a group of university and NGO partners in Southwest
Nova Scotia. Please contact me if you would like to know more about it.
John
j.f.kearney@gmail.com
From: naturens-owner@chebucto.ns.ca On Behalf Of Donna Crossland
Sent: Tuesday, February 11, 2020 20:58
To: naturens@chebucto.ns.ca
Subject: Re: [NatureNS] Great Horned Owl
It would be fun to form some sort of auditory census for Great-horned owl
nesting pairs right about now. It's interesting to learn of just where they
are nesting and whether they are increasing/decreasing. The nocturnal owl
survey takes care of this to some extent, but it would be interesting to
learn more of their whereabouts, particularly close to towns, etc.
Here's hoping that this 2nd apparently 'open winter' (I know that March can
still surprise us) does not negatively affect Barred owl populations.
Bernard Forsythe's report of last year's uncommonly low (nonexistent?)
success rate for nesting Barred owls leaves us hoping this winter will be
more productive.
The yellow-breasted chat must be regretting its choices by now?
Donna Crossland
Tupperville
On 2020-02-11 10:25 a.m., James Hirtle wrote:
When I got out of work on Feb. 16 at 23:00 there was a great horned owl
calling. It sounded like it was somewhere in the vicinity of Woodland
Gardens. I was on Dufferin Street up over the hill from there.
The yellow-breasted chat continues at Barbara McLeans in Lunenburg and a
pine warbler has returned after quite an absence.
James R. Hirtle
LaHave
------=_NextPart_000_0001_01D5E188.A52CB4B0
Content-Type: text/html;
charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
<html xmlns:v=3D"urn:schemas-microsoft-com:vml" =
xmlns:o=3D"urn:schemas-microsoft-com:office:office" =
xmlns:w=3D"urn:schemas-microsoft-com:office:word" =
xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" =
xmlns=3D"http://www.w3.org/TR/REC-html40"><head><meta =
http-equiv=3DContent-Type content=3D"text/html; =
charset=3Dus-ascii"><meta name=3DGenerator content=3D"Microsoft Word 15 =
(filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]--></head><body lang=3DEN-CA link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;mso-fareast-language:EN-US'>Hi Donna and =
all,<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;mso-fareast-language:EN-US'>This kind of =
census has a great appeal to me. I don’t participate in the =
nocturnal owl studies sponsored by Birds Canada since I don’t =
agree with disturbing and agitating breeding birds that may result from =
the requirement to broadcast recordings of owl calls. So many studies of =
birds, in the name of conservation, are stressing birds through capture, =
tagging, and playback. Studies are beginning to show that stress during =
the breeding season from human-generated sources can affect not only =
breeding success but long-term physiological health. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;mso-fareast-language:EN-US'>A new project, =
called Listening Together, in Southwest Nova Scotia, is developing a =
survey method that people could use to replace the Birds Canada survey =
method. This method involves the placement of inexpensive but =
programmable recording devices along an owl survey route. This method =
enables the survey participant to listen on a more frequent basis for =
the presence of owls on the route without disturbing the owls. The =
project is also working on methods to detect the presence of owl calls =
in the recording automatically and even identify the species. These more =
advanced features will take more time to develop but I’m hoping to =
have automatic identifiers for a few spec