I too have a song i.d.; I am sure this is some sort of local
sparrow, but it's driving me nuts! It sings in my back yard,
here in Seattle, and has that quavery human-whistling character
that is like, say, a song sparrow.

The song is three notes, each of fairly equal length, in
a descending triplet. This particular one (I tested it against
my piano) is G# - F - C#, two octaves above middle C.

It reminds me irresistably of one of the Brandenburg Concerti,
which begins the same way.

Any ideas?

Josh Hayes, Quantitative Sciences, Univ. of Washington
josh at pogo.cqs.washington.edu