Great stuff RBD.
You guys are lucky, rattlers make some noise!! Australian snakes are silent for the most part. Some are also very aggressive. In summer, it is just not worth entering any thick bushland. Especially in areas which have Tiger snakes or King Browns which are nasty buggers who are very agressive. They will chase you and if you don't have a good five or more metre (about 15 foot for you still using the imperial system) head start, they well catch you. I can remember hitting third gear on the farm bike before a king Brown stopped gaining ground on me. Scary stuff. We lost a lot of working dogs from snakes. We had a few get bitten and survive too. Some dogs are just HARD I guess!
As it's winter here in the southern hemisphere, it's fantastic. We can run through thick bushland without fear of a snake. Come September, we will have to start restricting bush walks to the trails and only with me in front, as the dogs paws don't create enough vibration to warn the snakes we are coming. Plus, if it's a tiger or a King Brown, it won't move anyway!
A taipan or urrrrgggghhhh ....a Death Adder......they will slither off once they sense something coming. But, if you sneak up on a death adder unexpectedly, it's not going to be a good outcome regardless of how close to medical help you are. Their poison is nasty.
We also have some pretty nasty spiders too. Funnel Web spiders and the infamous Redback Spider are two which can kill a dog. Do the same to a human too, especially the funnel web. Once again, more a summer spider. Winter is pretty safe down south in Oz.
Up north....well....it doesn't matter....the Crocodiles are there summer and winter. Only difference being, in winter, they eat a little less!!!
Snakes are about the only animal I have a phobia about. I have dived with very large sharks, sat down next to a massive tiger, bottle fed an 18 month old tiger (they are adult size by then almost...huge), handled lizards and spiders, but snakes freak me out. I guess my farm experiences growing up have sowed a mental path whereby snakes are the enemy!!! They used to steal the eggs, amongst the other issues and hence, if we found one, we shot it. I can't tell you how many snakes I have hung over the fence for the crows to eat over the years. I hate the buggers....!