Thanks to all for your thoughts, Bird, Ernie,Scruffy, Thomas, Jon, and Paul.
After reading the link provided by Ernie and
http://www.nwbison.org/ I figured out there is a reason for all these years I have only considered raising Bison./w3tcompact/icons/smile.gif
I think the biggest drawback in my case is raising but a few. Usually I start with a bread heifer @ $500 to $800, and turn around a calf about every 18 months. This works for 5 to 6 years with the same cow. With Bison, (from the .org auction page), 2 year old bread heifer cost $11,530 average. I read a Bison cow will calf for as long as twenty years.
This is a copied from the .org page related to fences:
"One or two bison will not be happy and they will not thrive, even under the best of conditions. If there are other animals in the vicinity, they will yearn to join them. Their herd instinct is so strong they will give up their individuality as bison to leap the fence and join another species so they can be part of a 'herd.' Generally you can pasture cattle and bison side by side if there are sufficient bison to establish a herd group. Pasturing two herds of bison side by side, however, will usually result in the group ignoring the fence and becoming one herd of bison. The secret to keeping bison where you want them to stay is to give them no reason to stray."
Bird, this may be why Janie Frickey had a problem keeping a couple of Bison in.
I don't think I can afford the liability if something like Ernie posted about the two deputies happened with one of my critters. Seems like you could be held negligent for even trying to raise just two of these critters./w3tcompact/icons/frown.gif
I guess I will stick to hogs, chickens and cattle.