Rabbits and "Month's with an 'R'"?
#2
I've only heard that expression in relation to the safe times to eat oysters. Would assume that it refers to the fact that rabbits are safer to eat in cold weather. In my family, we never shot rabbits until we got a freeze or very hard frost. It was supposed to kill parasites on rabbits that cause disease.
#6
Here in Arizona that is the general rule: no shooting rabbits in months without an "R." And yes it has something to do with the fact that they have some sort of worm/disease during the summer months.