[EBB Sightings] Lake Del Valle

This morning I hiked at Del Valle along the lake from
the picnic area to the bridge.  The lake is
surprisingly full for this time of year.  Birds of
note: 
a Golden Eagle over the bridge
The underside of the bridge features small square
cutouts (for drainage?).  There are 8 at each of the 4
bridge supports.  White Throated Swifts appear to be
nesting inside these holes.  At least, there were
observed flying in and out of them.
I believe I spotted a Vaux's swift soaring with the
white-throateds.  It was smaller, paler, and lacked
the white throat and sides.

Also at the south end of the lake, amongst the reeds,
were 3 female Wood Ducks.

I stopped at Murrieta's Well, but didn't see or hear
any birds.

Bill Clark
Livermore
--- Steve Huckabone  wrote:

> Monday I stopped at Murrieta Well's and easily found
> two Collared Dove
> previously reported by Art Edwards.
> At Lake Del Valle I spotted a Townsend's Warbler and
> Yellow Warbler. Of
> special interest was what I believe to be a Chimney
> Swift. The bird was
> soaring with it's tail wide and flying completely
> different from the
> numerous White-Throated Swift's. The swift was cigar
> shaped and had the pale
> throat, I guess it could have been a Vaux's but it
> was acting and flying
> very different.
> 
> I found the swift about .5 miles after the entrance
> kiosk soaring.
> 
> Steve Huckabone
> Alameda County
> Livermore California

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