Re: [SBB] Great Blue Herons

["Garth Harwood" <[[email protected]]>]

Linda et al.,

Regarding your Bewick's Wren postscript: it does sound very early for
fledgling BEWR. In my nestboxes I usually see the first signs of nest
establishment about now (this has happened as late as 5/25 for BEWR, but
never earlier - in my experience -  than late March.)

I believe you observed some courtship behavior between a mated pair prior to
nesting. A number of species feed their mates during courtship, and I've
also noticed that "begging" behavior in several songbird species prior to
copulation. I will leave you to determine who is doing the begging, and what
for.

Happy Spring,
Garth Harwood

----- Original Message ----- 
From: <[[email protected]]>
To: <[[email protected]]>
Sent: Thursday, March 24, 2005 7:12 PM
Subject: [SBB] Great Blue Herons


> Good evening SBBers....
>
> Went twice to Vasona today...once to walk around and see all the
birds...The
> Bullocks Orioles are just beautiful. Male Western Bluebirds  were flying
back
> and forth by the Ranger's Station.
>
> The second trip was to check on the herons around 6:10PM....You can hear
the
> babies calling as soon as you get out of the car.  Nest 1 is  incubating,
> Nest 2 Brooding, Nest 4 Brooding, Nest 9 incubating and a brand new  nest
being
> built that will be Nest 10!  Lots of action with the males  coming off the
nest
> and the females coming in to change shifts with food for the  little ones.
A
> yearling was present and caused all the herons to defend  their nests
against
> this youngster trying to fly into one of the nests.   Lots of display and
> vocals tonight....
>
> Wishing you all good birding and my best regards,
> Linda Sullivan
> PS..Went to Rinconada Park today and watched a Bewick's Wren feeding a
> fluttering begging Bewick's Wren...could this be a fledgling so  soon?
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