North American Fruit Explorers mailing list at ibiblio

[Dan Nave <nave1@comcast.net>]

Has anyone tried the Whirlybird Repeller for scaring birds away from their 
fruit trees or bushes?
It looks interesting.  The commercial product looks pretty fancy (if 
expensive) but the original patents
show something that could be made at home.

Dan

http://whirlybirdrepeller.com/wordpress/?page_id=6

http://www.freepatentsonline.com/6814021.html

http://www.freepatentsonline.com/6557482.html