Foxes are definitely hard to catch in a live trap - you need a much larger one than you'd expect. Leg hold traps are your best bet - depending where you live you may need a licensed trapper to set them.
(a) Any cable devices, such as snares, used to take a furbearer, cougar, coyote, or raccoon, except those set in water or with a loop size less than 3 inches in diameter, must be equipped with a breakaway lock device that will release when any force greater than 300 lbs. is applied to the loop.
Many Canadian provinces consider Vulpes vulpes (Red fox), Vulpes lagopus (Arctic fox) and a few other fox species as native animals, and prohibit their possession for personal interests, meaning as pets. Gray and Swift foxes are protected species, and thus, prohibited as pets nationwide in Canada.
Red fox may be hunted (but not trapped) by a resident, without a licence and at all times of the year on any privately owned land to which he or she has the right of access. Check with your municipality on any restrictions on the use of firearms. Never feed foxes.
Gray Foxes are protected under the Ontario Endangered Species Act (2008), which also protects the Gray Fox's habitat. Hunting and trapping guidelines in Ontario and Quebec state that foxes trapped accidentally must be released if they're alive.
Raccoons are not protected under state law in Utah. As such no hunting or trapping license is required to take this animal.
Red fox may be hunted (but not trapped) by a resident, without a licence and at all times of the year on any privately owned land to which he or she has the right of access. Check with your municipality on any restrictions on the use of firearms.
Humane traps, or box traps, are an effective means of capturing certain dogs and cats that won't allow humans to approach. Three Retrievers Lost Pet Rescue has trapped hundreds of cats and dogs in Tru-Catch humane traps without a single significant injury.