Corn rattle snake?

A lot of colubrids do it - subocs, flavirufa, cribos, indigos, pits..............

lol that vid was cute. yea my baby corn does it when there is a storm. no other time lol shes asilly snake

My corn doesn't, but my gopher snake rattles her tail all the time. She has never even gone into striking position, though. I think they just do it when they get nervous as an instinctual response (I just got her a few weeks ago and she is still getting used to me).

She's not very convincing though. Usually sounds like a vibrating cell phone :D