I found this link on Owls and why they are so much quieter than the other birds of prey. It is really interesting the way the wing works and it makes me wonder what that would do for an airplane? Yes I know the wing does not flap up and down on an airplane...but this is so cool that I thought I'd share it with you all.
HowStuffWorks Videos "The Ultimate Guide: Birds of Prey: Owl's Spiked Wings"
darylP
HowStuffWorks Videos "The Ultimate Guide: Birds of Prey: Owl's Spiked Wings"
darylP