bird call--ID needed

["Debbi B" dgbrusco]

I was on the north end of Swanton Road off the coast highway this
weekend. In this particular spot, there were pines, the road was curvy
and starting to go up in elevation (but probably not more than 1000').
There were European Starlings, Pygmy Nuthatches, Wilson's Warbler, and
Steller's Jay around. There was this call, around 3500Hz ("tee-yew")
which we couldn't identify. I had to cut a lot of talking and other
noise out of this (recorded with the "point and shoot" Olympus), but the
call wasn't regularly-spaced anyway.

http://briefcase.yahoo.com/dgbrusco/  --look foir the Swanton Road file
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Debbi Brusco
San Francisco bay area