first protection from predators while archery hunting, then pop cans, and possibly crooks if it ever came down to that. As far as I know, Utah law says that you can't have a handgun with you while archery hunting unless you have a permit.
First off check your state laws about carrying a firearm wile bow hunting. Currently in my state archery hunters are not allowed to be in possession or be with another group of hunters who are in possession of a firearm. But with all the cats out there and now the rumors of wolves I'm willing to conceal my protection. If your state law permits carrying one I would get one in a leg holster.
We archers already bring enough crap with us in the tree that we must be very selective about what we choose to bring up with us. weight,size,material construction etc. I myself bought a Springfield .45 ACP for the following reasons in no specific order.
1. synthetic polimer's do not clang if you hit a metal object such as your ladder. And not as cold in the pocket.
2. Scent-easier to mask the scent, less metal you have to keep oiled. Why spend all that money and effort to mask your scent just to tote a large metal object coated in gun oil?
3. Hammer-less apt to snag the hammer on webbing or straps of an auto vs a revolver. Not to mention I've had days that when I climbed out of the stand my hands were so cold I could barely fumble my car keys around let alone **** a hammer.
4. Don't have Griz around here (yet) 44mag or .357 I felt not needed for cats and wolves. Thus caliber of big revolver not needed.
5. Concealment-need something that stuffs away real nice to hide from onlookers and wardens but can access in worse case scenario if dangling from my harness from a tree with a big tom thinking I'm his new toy. If something tries to come up the tree after you they could easily wind up dumping you from your stand.
6. Loose tolerances built for better reliability in harsh environment. I wanted something combat rated then I would be reassured by reliability. Sorry for 1911 lovers, I thought the tolerances were too close for me. Not to mention more metal and price.
7. To me laser is a must. A man can close the distance of 20ft before most people can draw, aim, disengage safety and shoot. Think of how fast a cougar could close 30ft. This is why I chose a laser, also like the safety system on the older XD (new ones also have standard safety switch.). Grip the pistol and your ready to fire but no fear of it going of in my pack or pocket when not in holster. (Crimson Trace Grip)
8. Mag capacity. Wanted a large caliber but high capacity of ammo. Many .45 ACP only carry 9 max. The XD is capable of 14. Do you need 14? My theory is that you don't hear too much from the guys that needed 14 because they NEEDED 14 or more. Nothing more safe feeling than lots of ammo.
9. Price. The XD has an very (in my opinion) economic price. Usually around $525 then add another $330 for laser grip.
http://www.crimsontrace.com/Home/Products/SpringfieldArmory/tabid/187/Default.aspx
Best case scenario you'll never need it. Worst case, it will protect you when you need it. I'm glad I bought Mine and love it.