On Monday night while leaving a friend's house in a quiet section of North
Portland at about 10:30, I stopped to listen to a large number
of Swainson's Thrush flight calls coming from overhead. In the two minutes
or so that I listened, I noticed about
80 call notes. Upon arriving at home 15 minutes later in Vancouver, I
noticed about thirty more flight calls in a minute or
so of listening. All were Swainson's Thrush but two calls that were of the
"tseep" variety; presumably warbler flight calls, though
I could not identify which warbler.

-Mike Clarke
Vancouver, WA
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman1.u.washington.edu/pipermail/tweeters/attachments/20110921/6be3d046/attachment.htm