[EBB Sightings] Sounds of Anna's

[EBB Sightings] Sounds of Anna's

Frano
Fri Feb 08 10:03:32 PST 2008
  • Previous Message: [EBB Sightings] Contra Costa shoreline train birds
  • Next Message: [EBB Sightings] Sharp-shinned Hawk at Coyote Hills / pix

    « Back to Month
    « Back to Archive List

    
Here is a very interesting article about how a humming bird makes a sound. I 
thought most would be interested.

http://www.sfgate.com/cgi-bin/article.cgi?file=/c/a/2008/02/08/MN6FUU96H.DTL

Gary
Hayward
    « Back to Month
    « Back to Archive List