[SBB] Sunnyvale Tern problem

[[[email protected]] (Bill Maney)]

Hi,
Yesterday, August 30, I went to the Sunnyvale WPCP and biked around the
radar tower pond.  On the levy there was a tern that looked different
from the Forester's.  I took some distant photos.  I appologize for the
very poor quality.  
The bird was the same size as the forester with a black beak similar to
the juveniles.  The eye was distinctly larger, with a teardrop shaped
black region around it.  The shoulders and back of head were a brownish
charcoal.  I watched it walk delibrately over to a ring-bill and tug its
tail, which made me laugh out loud.

http://geocities.com/bill_maney/mysterytern2.jpg


It was quite similar to a bird I saw on August 23 in the same place. 
That bird seemed to have more brown than charcoal.  It also had some
brownish coloring on the top of the head.

http://geocities.com/bill_maney/mysterytern1.jpg

Any thoughts?
Bill Maney

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