You said they can raise up 2 inches? I'll bet they can raise up higher than that. Did you know that a smaller sized rattlesnake can stand up and dance on it's tail? I know that sounds preposterous but it is true. There is an old western painting (either Russel or Remington) that depicts Indians in some kind of ceremony with snakes dancing in “S” shapes on their tails.
I was in south Texas deer hunting and decided to walk back to the camp because nothing was moving. I heard a buzzing sound (I had never heard a rattlesnake's rattle). About 12 feet in front of me was a rattle snake up on his tail just like the western painting I had seen.
Yes I was armed and I killed it, it took a couple of shots because it was moving. I thought I was going to have a heart attack, I was so stunned.
Ive heard them buzz and ive heard them rattle. First time I heard the buzz, i knew right away it was a rattler even though I did not see it.
I heard the Hopi Indians have a rattlesnake dance but thats all i know.