I would not dream of arguing with the page you mentioned. Im not qualified to. I have to laugh at some of the advice they give though. While it is perfectly fine for most people; giving advice to stay out of areas inhabited by venomous snakes is impossible for people like me. I am in a copperhead infested area the moment I walk out my front door. Its 25 miles to the nearest city. This has been a bad year for copperheads as there has been a bit of a drought condition all summer. I have killed 4 and seen, at the very least, 20 more that I did not kill. Thankfully, copperheads are not agressive. Only one has struck at me. I did not see him and he had nowhere to go. Rat shot in a 357 magnum took care of him.