Those dogs in the picture are Blue Tick, Walkers and a Mountain Cur...They are OK for bear, but you can’t beat a Plott Hound for bear or hogs...
The Plott Hound - Ninja Warrior Of Dogdom
http://www.slate.com/articles/news_and_politics/heavy_petting/2008/02/great_plott.html
A Walker treeing coon hound? I’ve heard those dogs will try to climb the tree.
A good one is a lot of money.