[wisb] Re: Bluebirds
- From: "Kent" <kentsue@xxxxxxxxxxx>
- To: <briandoverspike@xxxxxxxxxxx>, <wisbirdn@xxxxxxxxxxxxx>
- Date: Mon, 13 Jul 2009 11:11:36 -0600
Hi Brian & Becky:
Congratulations on your Triple Brood Nest--good luck with its development.
Triple nests develop only under the most ideal of conditions and according
to the 8 year records of the Audubon Society in central WI (Aldo Leopold
Chapter), are built only in July (usually during the1st three weeks).
Currently, our bluebird trail of 1,066 boxes has only one Triple Brood Nest
on it (4 E's).
As a whole, this has been a better nesting season for bluebirds on our trail
than last season and that seems to be reflecting the general trend
statewide--our sub-trails at Ft. McCoy are having an unbelievable year and
are currently averaging the potential to fledge 7.5 EABL's/nest box (151
nest boxes), perhaps the best performance for a single geographical site in
the 23 year history of the Bluebird Restoration Association of WI (BRAW).
Our trail should fledge 5,000-5,500 bluebirds for the season plus another
1,000 of the "big three".
I hope you have a chance to send in your fledging records to me at the end
of the season. Contact me for details.
As an aside, I experienced last week a first for the Audubon Trail. A
single bluebird nest with 9 E's--a recent thread
asked about maximum number of E's for a Purple Martin and "egg dumping" was
brought up. I am sure this 9-egg
nest is an example of egg dumping. My personal records for a single nest
for the common cavity nesting songbirds are: Black-capped Chickadee (14 E's,
6 hatched and fledged); Tree Swallow (10 E's/6 hatched and fledged; my wife
owns the state record for TRES's, having had 9 of 9 hatch and fledge) and
House Wren (9 E's/9 hatched and fledged). So these species can be quite
prolific under the right circumstances.
Kent D. Hall, Coordinator, ALAS Bluebird Trail
and Coordinator, Data Collection & Analysis,
BRAW
Stevens Point/Portage Co.
----- Original Message -----
From: "Brian Doverspike" <briandoverspike@xxxxxxxxxxx>
To: <wisbirdn@xxxxxxxxxxxxx>
Sent: Monday, July 13, 2009 9:59 AM
Subject: [wisb] Bluebirds
> We have a third nesting attempt in the Bluebird house in our backyard. A
> first for us! We have always had two attempts per year in the past. We
> did not even know the second batch had fledged yet and when we checked
> they were gone and the next pair had their nest built already. They must
> have been waiting impatiently for their turn! Today there is one blue egg
> in the nest. What fun!
>
>
>
> Brian Doverspike and Becky Anderson
>
> Pardeeville, Columbia County
>
> _________________________________________________________________
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