I have used just about every method under the sun for controlling fox numbers on farms around here (excluding gas/poision) and have to say fox shotting is
1) Difficult, yep you see them all over the roads but thats usually cubs not adults. When they wise up shooting them takes skill.
2) Time consuming. Fancy sitting up all night looking for foxes?
3) Costly. How much you gonna pay me for this service?
4) Dangerous. That kid that got shot the other day. Easilly happens when your shooting at 100yards at night using lamps. Ive lamped the edge of woods had a contact got closer to find its some idiots out walking the dog or having a shag. Scares the **** out of you.
Another method of shooting foxes is to drive them from the woods, this comonly uses dogs and I would never do this with a team I hadnt worked with before. I know several people who have been injured doing this, its very very dangerous as your basically moving towards a bunch of blokes with shotguns loaded with heavy shot.
Somebody asked how will fox numbers be controlled probably by snare and gas.
As to my knowledge of pest control Ive been doing it for 18 years, graduated from a Environmental science (conservation managment) HND. Currently working in a different industry due to absolutely crap pay, but still do work on farms to help friends out.