[EBB Sightings] Pleasanton Birds

Hi all,
There is a modest population of Mute Swans breeding on
the Concord Naval Weapons Station. Don't have notes
here but they have probably been breeding about 5
years now. We don't have access in there anymore on
the CBC but the group numbers at least 20 birds. 
While they certainly are pretty, there is concern.
These swans are said to be very aggressive towards
other nesting waterfowl. Some states on the east
coast, where they have become particularly well
established,have implemented control programs. This
apparently most often involves egg addling.
Steve Glover
Dublin

--- Richard Cimino  wrote:

> A Mute Swan has been using the Pleasanton Detention
> pond located off of
> Valley Ave (south) .
> Phil and Pat Gordon noticed the Swan Sunday, I
> noticed it Monday and
> Tuesday also.
> Phil Gordon indicated there is a wild population of
> Mute Swans near Port
> Chicago.
> Any feed back on the current status of the Contra
> Costa (wild) Mute Swan
> population?
> Wild vs escaped Swan makes no real difference to me.
> 
> It a beautiful bird.
> It is a proud looking bird with it's neck cocked
> back as it swims around.
> Directions: Highway 680 to Bernal exit turn right on
> to Valley Ave South (
> at Shell gas station ).
> Drive about quarter mile to dead-end bear right
> toward HY 680, pond will on
> your right side.
> Birding is good here during a March Ohlone Audubon
> trip we logged 45
> species in the area.
> There many swallow's and swifts in the area.
> Recent sighting yard birds this morning there is a
> Swainson Thrush in the
> yard.
> A Golden Eagle and 15 + Cliff Swallows above my home
> on Monday 5:30 PM.
> Copper's Hawks appear to have a nest site in
> Pleasanton  Aquatic Park.
> 
> 
> Richard Cimino
> Alameda County
> It is more fun to arrive at a conclusion than to
> justify it
> 
> 
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