Here it comes Joe!
The answer to your snare problems.
Rig your snare using bungee cords instead of natural spring branches and eliminate the problem of finding the ideal snare location on the run w/ branch available. You can even drive a post into the ground next to the run and set the bungee to the top of the post.
In our modern "urban wilderness we must do what we must do. Nature will not always provide what we need as it did 100 years ago in the "great north woods".
I can not recommend the Hoods Woods video series enough in this area. Ron Hood was an excellent instructor and did an amazing video on traps and snares. He set the standard for all the U-tube survival instructor we have to deal with today. They all copy his instructional style, his "sit on the stump and talk" presentation and even his look.http://www.survival.com/?page_id=241
Ron's vids are not 10 minute clips, they are full length instructional videos. I think I remember the trapping vid being 1 1/2 hours long.
Another truck for the urban forager is the use or RAT TRAPS. Not little mouse traps, but the big old rat traps that are about 6" long and 3" wide. They work very well on squirrels and young rabbits. Just drill a hole in one corner for your security line or to attach it to the twitch up.
Not many folks are going to have bungees or rat traps in their day pack but in our urban/suburban setting, which is where most of us would be operating, they are available from the Dollar Store or Wally-world.
Fact is, I keep both items in my Jeep. Of course I keep a weeks supply of Dinty Moore and Vietti chilli along with rifle and ammo, so I am really hoping I will be rescured or the body recovered before I am reduced to eating rat trapped squirrel.
As far as the Hunta virus is concerned, I find no cases of the disease reported east of the Mississippi River. It seems confined to the dry climate areas for some reason. Rats and mice are just nasty and the thoughts of eating one are repulsive to me. It is the smell. I simply can not get past that rat smell.