Researchers have been examining the mechanics of how Owls can turn their heads as much as 270 degrees without their carotid and vertebral arteries being twisted closed and causing Owls to literally fall off their perches. http://www.bbc.co.uk/news/science-environment-21279609
Cheers,
Carl Clifford ===============================
To unsubscribe from this mailing list, send the message: unsubscribe (in the body of the message, with no Subject line) to: birding-aus-request@vicnet.net.au
http://birding-aus.org ===============================