Animal trapping methods used to catch fur bearing animals are tailored to the species and habitat of the animal. The trapper must consider the types of bait and the size of trap to be used, the placement of the trap and where the fur-bearing animal is most likely to be caught.arious baits are used depending on the target animal. These traps can be from one foot to four feet long. The width and height can vary, but are usually about one foot by one foot in height and width or less. They can be made at home or commercially bought.