The Hog Nose Snake or this sneaky snake goes by numerous other names,such as "Blowing Adder, Death Adder, False Cobra, Hissing Adder, Opossum Snake, Puff Adder, Sand Viper, Spreadhead, Spreading Adder".
These snakes are all too common in our neck of the woods. We have seen many over the years but I have seen nearly 6 this year and 3 of them in the past 3 days!
"When first approached or threatened, a Hog-nosed Snake will begin to hiss very loudly. It will begin to flatten out its neck, revealing two large black spots on the neck. Although "primitive", these black spots likely act as eye spots (a common defensive patterning found in a variety of organisms--ex. large spots on the wings of butterflies). As the defensive display continues, it may eventually flatten out almost its entire body. If touched, it will "false strike" with its mouth closed. Some specimens, however, will gape their mouths open and their strikes seem more intent on actually biting. If harassment continues, a Hog-nosed Snake will deflatten, stop hissing, defecate, and writhe about for a couple of seconds. This maneuver acts to smear a foul-smelling musk over its entire body before the final ploy: playing dead! This species will roll over, flop its mouth open, stick out its tongue, and lie motionless! If it is prodded or turned upright, it will repeat the thrashing step and roll back over. After a few minutes of being left alone, it will lift its head and look for the "all clear". If it feels safe, it will turn back over and go on its way."
I have heard of these snakes all my life but never seen one till I was in my twenties (just a few years back ;) ;) ). I remember when I seen it my dog was trying to attack it. The snake "puffed" out it's head and looked like a cobra. I remember thinking, OMG,someone has let a Cobra loose and it's in my yard!