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_000C_01D62E7B.68C00C80
Content-Type: text/plain;
charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
That is unfortunate, and those who are doing so are not following the =
ethical guidelines of Birds Canada and the American Birding Association. =
In some cases, judicious use of playback is considered permissible for =
conservation research. However, as noted in an earlier discussion in =
this forum, this is increasingly unnecessary with the availability of =
autonomous recording units.=20
=20
From: naturens-owner@chebucto.ns.ca On Behalf Of Shouty McShoutsalot
Sent: Wednesday, May 20, 2020 07:21
To: naturens <naturens@chebucto.ns.ca>
Subject: Re: [NatureNS] Question: Starling Behaviour
=20
Re mobbing calls regrettably it is still a common practice among =
birders. With cell phones and birding apps its easy to produce and =
playback them at will.
=20
On Tue., May 19, 2020, 21:38 John Kearney, <j.f.kearney@gmail.com =
<mailto:j.f.kearney@gmail.com> > wrote:
Hi Burkhard,
Many bird species have mobbing calls. You may have seen the Black-capped =
Chickadee doing this many times. Perhaps you thought it was curious =
about you but more likely, it was letting other birds know of your =
presence. One of the fascinating things about mobbing calls is that some =
species understand the unique mobbing calls of another species as a =
mobbing call and will join in multi-species harassment of a predator. =
Mobbing works, it is believed, not so much because the predator is =
frightened, but because it has been outed. It has lost the advantage of =
a surprise attack. In the past, birders would play recordings of mobbing =
calls to attract a wide variety of species, and with the hopes flushing =
out a rare bird. Birders have abandoned this practice since it causes =
unnecessary stress to the birds and distracts them from more important =
tasks such as feeding young or building up fat reserves for their =
migration.=20
John
-----Original Message-----
From: naturens-owner@chebucto.ns.ca =
<mailto:naturens-owner@chebucto.ns.ca> On Behalf Of Burkhard Plache
Sent: Tuesday, May 19, 2020 18:59
To: naturens@chebucto.ns.ca <mailto:naturens@chebucto.ns.ca>=20
Subject: [NatureNS] Question: Starling Behaviour
Hello fellow naturalists:
We have a pair of starlings is raising its brood in a former hairy =
woodpecker cavity in our front yard. Today, there were some 10-12 =
starlings scattered in the nearby branches. A few minutes later, a big =
ruckus broke out, with a squirrel departing the tree at high speed =
pursued by some 5-6 of the starlings.
My question is: Are starlings known to band together in times of =
trouble?
If so, they must have some means of calling for help in case of a =
threat.
Curious,
Burkhard
------=_NextPart_000_000C_01D62E7B.68C00C80
Content-Type: text/html;
charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
<html 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=3Dutf-8"><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;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
span.EmailStyle19
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style></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'>That is =
unfortunate, and those who are doing so are not following the ethical =
guidelines of Birds Canada and the American Birding Association. In some =
cases, judicious use of playback is considered permissible for =
conservation research. However, as noted in an earlier discussion in =
this forum, this is increasingly unnecessary with the availability of =
autonomous recording units. <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:12.0pt;mso-fareast-language:EN-US'><o:p> </o:p></=
span></p><div 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 <b>On Behalf Of </b>Shouty =
McShoutsalot<br><b>Sent:</b> Wednesday, May 20, 2020 07:21<br><b>To:</b> =
naturens <naturens@chebucto.ns.ca><br><b>Subject:</b> Re: =
[NatureNS] Question: Starling Behaviour<o:p></o:p></span></p></div><p =
class=3DMsoNormal><o:p> </o:p></p><div><p class=3DMsoNormal>Re =
mobbing calls regrettably it is still a common practice among =
birders. With cell phones and birding apps its easy to produce and =
playback them at will.<o:p></o:p></p></div><p =
class=3DMsoNormal><o:p> </o:p></p><div><div><p class=3DMsoNormal>On =
Tue., May 19, 2020, 21:38 John Kearney, <<a =
href=3D"mailto:j.f.kearney@gmail.com">j.f.kearney@gmail.com</a>> =
wrote:<o:p></o:p></p></div><blockquote =
style=3D'border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm =
6.0pt;margin-left:4.8pt;margin-right:0cm'><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'>Hi Burkhard,<br>Many bird species have =
mobbing calls. You may have seen the Black-capped Chickadee doing this =
many times. Perhaps you thought it was curious about you but more =
likely, it was letting other birds know of your presence. One of the =
fascinating things about mobbing calls is that some species understand =