Oldtimr, I am assuming the MD he mentioned several times in his post is Maryland. He also mentioned the Blackwater and Cunningham swamps. And if my memory is correct, it's been a very long time since I hunted in Md, you are not permitted to use electronic communication devices to aid in hunting wildlife in Maryland. I am almost positive you can't in any state on PUBLIC lands. Some states allow things on private that they don't allow on public but I am fairly certain that Walkies and such are not one of those things.