[TN-Bird] Re: pif landbird population estimate for loggerhead shrike in tn
- From: "pandion@xxxxxxxxxxxxx" <pandion@xxxxxxxxxxxxx>
- To: "Stephen Stedman" <SStedman@xxxxxxxxxx>, tn-bird@xxxxxxxxxxxxx
- Date: Thu, 18 Oct 2007 23:48:36 -0400
Stephen and others,
I have daily bird records since January 1, 1994, with the vast majority of
my time during this period having been spent in Greene County. Although
Greene has a large amount of low-elevation agricultural or
semi-agricultural land that offers a lot of what appears to be good shrike
habitat, and although I have spent at least part of over 2000 days (a
conservative estimate) in habitat that might be suitable for shrikes, I
have seen only a very small number--many of which I've found during repeat
visits to the same sites. My high count was five birds--a family unit of
two adults and three juveniles--on July 8, 2000. I almost never see more
than one shrike in a given day. I do not necessarily find them in every
month of the year, and I find very, very few in Greene County in June and
July.
I might be willing to believe that there are as many as a handful of
nesting pairs, but this would be a generous concession. Even wintering
birds aren't at all likely in apparently good habitats. I can't imagine
how anything approaching 150 pairs could be found, even if an army of
birders had complete access to all the private land in the "great valley"
of Greene County.
Loggerhead Shrike is disturbingly scarce.
Don Miller
Greeneville, Greene Co., TN
> [Original Message]
> From: Stephen Stedman <SStedman@xxxxxxxxxx>
> To: <tn-bird@xxxxxxxxxxxxx>
> Date: 10/18/2007 12:45:56 PM
> Subject: [TN-Bird] pif landbird population estimate for loggerhead shrike
in tn
>
> I was just looking through the Partners in Flight website, which
> features much useful information relating to North American birds. One
> of these features is a section that provides landbird population
> estimates for North America or for any state or province in North
> America where Breeding Bird Surveys are conducted. One of the species
> provided with a population estimate in Tennessee is Loggerhead Shrike.
> The population estimate for that species in Tennessee is 29,000 (i.e.,
> an average of 300 shrikes--150 pairs--per county), and the data on which
> the estimate is based is rated to be of the highest quality among the
> categories by which data quality is rated. I am wondering what other
> folk in the state think of this PIF estimate for the shrike population
> in our state. Please respond to the entire readership.
>
> Steve Stedman
> Cookeville, TN
>
> If you want to check out the PIF population estimates for other species,
> I provide below a website address for the PIF website; copy and paste
> into the appropriate space of your browser; when you get to that page,
> scroll down and look near the bottom for the link to "PIF Landbird
> Population Estimates"; when you get to that page, scroll down to the
> last paragraph and click on the link for "states and provinces"; when
> you get to that page, select the species you want a population estimate
> for in the box to the far left; then select TN in the box for states and
> provinces; then click on "submit."
>
> ttp://www.partnersinflight.org [put an "h" at the beginning of this
> address after you copy it into your browser]
>
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> wallace@xxxxxxxxxxxxxxxxxxx
> ------------------------------
> Assistant Moderator Andy Jones
> Cleveland, OH
> -------------------------------
> Assistant Moderator Dave Worley
> Rosedale, VA
> __________________________________________________________
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> Visit the Tennessee Ornithological Society
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> Topographical Maps located at http://topozone.com/find.asp
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> Aerial photos to complement google maps http://local.live.com
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=================NOTES TO SUBSCRIBER=====================
The TN-Bird Net requires you to SIGN YOUR MESSAGE with
first and last name, CITY (TOWN) and state abbreviation.
You are also required to list the COUNTY in which the birds
you report were seen. The actual DATE OF OBSERVATION should
appear in the first paragraph.
_____________________________________________________________
To post to this mailing list, simply send email to:
tn-bird@xxxxxxxxxxxxxx
_____________________________________________________________
To unsubscribe, send email to:
tn-bird-request@xxxxxxxxxxxxx
with 'unsubscribe' in the Subject field.
______________________________________________________________
TN-Bird Net is owned by the Tennessee Ornithological Society
Neither the society(TOS) nor its moderator(s)
endorse the views or opinions expressed
by the members of this discussion group.
Moderator: Wallace Coffey, Bristol, TN
wallace@xxxxxxxxxxxxxxxxxxx
------------------------------
Assistant Moderator Andy Jones
Cleveland, OH
-------------------------------
Assistant Moderator Dave Worley
Rosedale, VA
__________________________________________________________
Visit the Tennessee Ornithological Society
web site at http://www.tnbirds.org
* * * * * * * * * * * * * * * * * * * * * * * * * * * * *
ARCHIVES
TN-Bird Net Archives at //www.freelists.org/archives/tn-bird/
EXCELLENT MAP RESOURCES
Topographical Maps located at http://topozone.com/find.asp
Tenn.Counties Map at http://www.lib.utexas.edu/maps/states/tennessee3.gif
Aerial photos to complement google maps http://local.live.com
_____________________________________________________________
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