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Hi Ron,
This is an interesting observation. But it leaves me with a
question. Are "owls which have settled down with nesting duties"
less likely to call AT ALL, or just less likely to respond to a
recording? The ":silent listening" portion of the survey, which is
the first part, preceding the broadcast of recorded calls, is
considered the most significant part of the survey, I believe. {In
some parts of the country the official survey protocol doesn't use
broadcast calls at all.) So are owls which are freely calling, i.e.
when unprovoked, more likely to be unsuccessful breeders than those
who remain silent?
Suzanne Borkowski and I usually detect many of the owls we
find during those first two minutes of the survey; if they react to
the broadcast calls later, it gives us more time to confirm distance
and direction etc.
Cheers,
Patricia L. Chalmers
Halifax
At 02:16 PM 16/04/2013, you wrote:
>Hello Randy,
>
>This may in fact be good news. Scott Makepeace, NB Dept. Nat.
>Resources biologist who monitors owls, told me that his work has
>revealed that the response rate of owls is actually inversely
>related to their nesting success, especially with Barred Owls, if I
>remember correctly. In other words, owls which have settled down
>with nesting duties are much less likely to respond to a taped call
>than are owls who are either looking for a mate or whose nesting
>attempt has failed.
>
>Hope this cheers you up!
>
>Ron
>
>
>On Tue, Apr 16, 2013 at 11:30 AM, Randy Lauff
><<mailto:randy.lauff@gmail.com>randy.lauff@gmail.com> wrote:
>Krista and I did the Fairmont (Ant. Coi.) route last night. Frogs
>were barely an issue as it was about -3 oC the whole time. Three or
>four years ago, I got a dozen (?) or so Barreds, GHOW and S'whets.
>Last year, skunked. This year, under similarly ideal conditions as
>last year...skunked. Very perplexing.
>
>Randy
>
>_________________________________
>RF Lauff
>Way in the boonies of
>Antigonish County, NS.
>
>
>On 16 April 2013 01:13, James Hirtle
><<mailto:jrhbirder@hotmail.com>jrhbirder@hotmail.com> wrote:
>
>An interesting evening for running this route with owls on 8 out of
>10 stops. We missed out on owls interestingly on two of the stops
>that we usually get them. One of these stops now has a trailer at
>the location, so that could be the reason. The other stop we always
>have wood frogs and spring peepers so loud that it is
>unbelievable, but by that point the temperature had dropped to
>around freezing. Wood frogs and spring peepers were at the first
>five stops and I suspect we would have heard them on all stops had
>the temperature not dropped. As the temperature dropped the owls
>seemed to become less vocal. I don't know if any studies have been
>done in respects to this observation or not. In all we had 10
>barred owls. Most of the owls all except for the first stop where
>there were three, two of which were seen, were all more distant than
>is the norm on this route.
>
>James R. Hirtle
>Bridgewater
>
>
>
>
>
>--
>Ronald G. Arsenault
>Moncton, N.B.
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<body>
<font size=3>Hi Ron,<br><br>
<x-tab> </x-tab>This is an
interesting observation. But it leaves me with a question.
Are "owls which have settled down with nesting duties" less
likely to call AT ALL, or just less likely to respond to a
recording? The ":silent listening" portion of the survey,
which is the first part, preceding the broadcast of recorded calls, is
considered the most significant part of the survey, I believe. {In some
parts of the country the official survey protocol doesn't use broadcast
calls at all.) So are owls which are freely calling, i.e.
when unprovoked, more likely to be unsuccessful breeders than those who
remain silent?<br><br>
<x-tab> </x-tab> Suzanne
Borkowski and I usually detect many of the owls we find during those
first two minutes of the survey; if they react to the broadcast calls
later, it gives us more time to confirm distance and direction etc.
<br><br>
<x-tab> </x-tab>Cheers,<br>
<br>
<x-tab> </x-tab>Patricia
L. Chalmers<br>
<x-tab> </x-tab>Halifax<br>
<x-tab> </x-tab><br><br>
<br>
At 02:16 PM 16/04/2013, you wrote:<br>
<blockquote type=cite class=cite cite="">Hello Randy,<br><br>
This may in fact be good news. Scott Makepeace, NB Dept. Nat.
Resources biologist who monitors owls, told me that his work has revealed
that the response rate of owls is actually inversely related to their
nesting success, especially with Barred Owls, if I remember
correctly. In other words, owls which have settled down with
nesting duties are much less likely to respond to a taped call than are
owls who are either looking for a mate or whose nesting attempt has
failed.<br><br>
Hope this cheers you up!<br><br>
Ron<br><br>
<br>
On Tue, Apr 16, 2013 at 11:30 AM, Randy Lauff
<randy.lauff@gmail.com>
wrote:<br>
</font>
<dl>
<dd>Krista and I did the Fairmont (Ant. Coi.) route last night. Frogs
were barely an issue as it was about -3 oC the whole time. Three or four
years ago, I got a dozen (?) or so Barreds, GHOW and S'whets. Last year,
skunked. This year, under similarly ideal conditions as last
year...skunked. Very perplexing.<br><br>
<dd>Randy<br><br>
<dd>_________________________________<br>
<dd>RF Lauff<br>
<dd>Way in the boonies of<br>
<dd>Antigonish County, NS.<br><br>
<br>
<dd>On 16 April 2013 01:13, James Hirtle
<jrhbirder@hotmail.com>
wrote:<br>
<dl><br>
<dd><font size=4>An interesting evening for running this route with o