No poisonous snakes, only the grown tree snakes that are only harmful to little kids and small pets. They still don't like us here but they've come to not start as much sht with us.. Man I could tell some stories about that place...From what I have seen on TV Guam has lots and lots of poisonous snakes there now but only one or two varieties. When I was there the Natives hated the Military..When ever we went off base we had to go buddy system..
As far as hunting, it's pretty much off limits now to most military unless you know someone. The island is very political and they only like to help the "parees" which is firend/family in English.