[TN-Bird] Re: 45 years of the Breeding Bird Survey
- From: Daniel Estabrooks <hyla514@xxxxxxxxx>
- To: "tn-bird@xxxxxxxxxxxxx" <tn-bird@xxxxxxxxxxxxx>
- Date: Wed, 12 Oct 2011 07:03:25 -0700 (PDT)
Wow, this is a fascinating analysis!
The bobwhite trend is particularly interesting to me, as they are still quite
abundant at Stones River National Battlefield. (There were days this spring
when I could hear three or four of them singing simultaneously.) It'll be
interesting to see how that population fares over the next few years.
I also found the Yellow-crowned Night-Heron data interesting since they are
easily the most abundant heron at Murfree Spring Wetland during the breeding
season. I'm not sure if they actually breed there or not, but I think it's
interesting that their numbers are so high that far away from their typical
range in West TN.
Daniel
________________________________
From: Bill Pulliam <littlezz@xxxxxxxxx>
To: "tn-bird@xxxxxxxxxxxxx Birds" <tn-bird@xxxxxxxxxxxxx>
Sent: Tuesday, October 11, 2011 10:30 PM
Subject: [TN-Bird] 45 years of the Breeding Bird Survey
I have done some examinations and analyses of the 45 years of Breeding Bird
Survey data for Tennessee (1966 through 2010) and posted some of the results on
my blog:
http://bbill.blogspot.com/2011/09/breeding-bird-survey-in-tennessee-45.html
Though some species have shown major declines since the BBS began in 1966, and
one (Bewick's Wren) has been all but extirpated, overall the story is quite
positive. Most species have increased during this time, with a median change
of +66%. Raptors and forest birds have fared the best overall.
Non-neotropical migrant forest species have on average tripled in abundance;
raptors have shown a median increase of nearly 8-fold! Even the beleaguered
neotropical migrants have for the most part held steady or increased.
Bill Pulliam
Hohenwald TN
=================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
--------------------------------
Assistant Moderator Chris O'Bryan
Clemson, SC
__________________________________________________________
Visit the Tennessee Ornithological Society
web site at http://www.tnbirds.org
* * * * * * * * * * * * * * * * * * * * * * * * * * * * *
ARCHIVES
TN-Bird Net Archives at //www.freelists.org/archives/tn-bird/
MAP RESOURCES
Tenn.Counties Map at http://www.lib.utexas.edu/maps/states/tennessee3.gif
Aerial photos to complement google maps http://local.live.com
_____________________________________________________________
Cleveland, OH
-------------------------------
Assistant Moderator Dave Worley
Rosedale, VA
--------------------------------
Assistant Moderator Chris O'Bryan
Clemson, SC
__________________________________________________________
Visit the Tennessee Ornithological Society
web site at http://www.tnbirds.org
* * * * * * * * * * * * * * * * * * * * * * * * * * * * *
ARCHIVES
TN-Bird Net Archives at //www.freelists.org/archives/tn-bird/
MAP RESOURCES
Tenn.Counties Map at http://www.lib.utexas.edu/maps/states/tennessee3.gif
Aerial photos to complement google maps http://local.live.com
_____________________________________________________________
Other related posts:
