[cpw]

Calif. gray whale shot with machine gun

http://news.yahoo.com/s/ap/20070909/ap_on_sc/whale_shot;_ylt=AgWVNomzcyMFhl7TRrTWTpKs0NUE

 

[EricOKC]

Yeah, a little difficult to explain how using a .50 caliber machine gun would fit in with your "tribal customs" exemption.
Maybe it's a recreation of how the buffalo were driven almost to the point of extinction elsewhere by use of the rifle.