Subject: [Tweeters] Newly discovered method of Hummingbird "vocalization"
Date: Feb 13 10:15:17 2008
From: Michael Marsh - northernpygmyowl at gmail.com
Birders:
This is interesting but a bit long. If hummingbirds aren't your thing,
delete now.
Good birding, Mike
http://www.berkeley.edu/news/media/releases/2008/01/30_hummingbird.shtml
Michael Marsh
Portland, OR