I have horrible memories of how thick that underbrush is... Dad used to make me play the dog and flush things out of the brush. I once nearly got horned when I disturbed a big buck that didn't want to be disturbed (I think I was 12 or 13) Dad kept yelling at me to get out of the line of fire, all I was interested in was getting out of the buck's path. My feet got tangled and I went down. Thankfully the buck went the other way and got away.For some reason, those sharp little hoofs can walk in places our big flat feet can’t go. Swamps don’t even slow them down.
However, your well thought out plan assumes we have an area we could drive them out of into the swamp. I don’t think you understand how thick the underbrush is and how large the tracts of forest are.