Most of the traps used for
mammals can be divided into six types: foothold traps, body gripping traps, snares, deadfalls, cages, and glue traps. Some of the traditional kinds have changed little since the
Stone Age.
Foothold traps in traps by
Vernon Orlando Bailey, 1909–1918 in
Oneida, New York, during the mid-nineteenth century. The trap features a chain with a swivel snap at one end and a ring at the other; the spikes on its jaws point inward. Traps of this kind were commonly used for
black bear trapping and were set with clamps (these types are not used any more) Foothold traps were invented in the 17th century for use against humans , to keep poachers out of European estates. The device uses a pressure plate between two metal arms, or "jaws", lined with spiked protrusions, or "teeth". Once the plate has been stepped on, the arms close on the ensnared person or animal's foot. Blacksmiths made traps of iron in the early 1700s for trappers. By the 1800s, companies began to manufacture steel foothold traps. Traps are designed in different sizes for different sized animals. In recent decades, the use of foothold traps in trapping and hunting has become controversial. Anti-fur campaigns have protested foothold traps as inhumane, with some claiming that an animal caught in a foothold trap will frequently chew off its leg to escape the trap. The practice has been banned in 101 countries as well as 10 states in the United States. Modern variations of the foothold trap have been designed to reduce instances of the animal fighting the trap, possibly injuring itself or getting loose in the process. These include traps with offset jaws and lamination, which decrease pressure on the animals' legs, and padded jaws with rubber inserts, which reduce animal injuries. Manufacturers of traps designed to work only on
raccoons are referred to as dog-proof. These traps are small, and rely on the raccoon's grasping nature to trigger the trap.
Body gripping/conibear traps Body-gripping traps are designed to kill animals quickly. They are often called "Conibear" traps after Canadian inventor Frank Conibear who began their manufacture in the late 1950s as the Victor-Conibear trap. Many trappers consider these traps to be one of the best trapping innovations of the 20th century; when they work as intended, animals that are caught squarely on the neck are killed quickly, and are therefore not left to suffer or given a chance to escape. The general category of body-gripping traps may include snap-type mouse and rat traps, but the term is more often used to refer to the larger, all-steel traps that are used to catch fur-bearing animals. These larger traps are made from bent round steel bars. These traps come in several sizes including model #110 or #120 at about for muskrat and mink, model #220 at about for raccoon and possum, and model #330 at about for beaver and otter. An animal may be lured into a body-gripping trap with
bait, or the trap may be placed on an animal path to catch the animal as it passes. In any case, it is important that the animal be guided into the correct position before the trap is triggered. The standard trigger is a pair of wires that extend between the jaws of the set trap. The wires may be bent into various shapes, depending on the size and behavior of the target animal. Modified triggers include pans and bait sticks. The trap is designed to close on the neck and/or torso of an animal. When it closes on the neck, it closes the trachea and the blood vessels to the brain, and often fractures the spinal column; the animal loses consciousness within a few seconds and dies soon thereafter. If it closes on the foot, leg, snout, or other part of an animal, the results are less predictable. Trapping ethics call for precautions to avoid the accidental killing of non-target species (including domestic animals and people) by body-gripping traps. Note on terminology: the term "body-gripping trap" (and its variations including "body gripping", "body-grip", "body grip", etc.) is often used by animal-protection advocates to describe any trap that restrains an animal by holding onto any part of its body. In this sense, the term is defined to include foothold/foothold traps, Conibear-type traps, snares, and cable restraints; it does not include cage traps or box traps that restrain animals solely by containing them inside the cages or boxes without exerting pressure on the animals; it generally does not include suitcase-type traps that restrain animals by containing them inside the cages under pressure.
Deadfall traps cordage. A
deadfall is a heavy rock or log that is tilted at an angle and held up with sections of branches, with one of them serving as a trigger. When the animal moves the trigger, which may have bait on or near it, the rock or log falls, crushing the animal. The figure '4' trap consists of three sticks oriented into the shape of the numeral 4. One stick holds a relatively large weight. Some bait is fastened to the trigger stick. When an animal disturbs the bait the trap is sprung. The trap is effectively a
lever. One of the sticks is the fulcrum (the upright portion of the numeral), one is the beam (the diagonal portion of the symbol 4), and the "trigger stick" (the horizontal bar) is, ultimately, the effort. One end of the beam holds up the rock. This is the load. The effort is applied to the other end of the diagonal stick. This makes it a Class 1 lever. The section of the beam on the rock end is much shorter than the trigger end. The effort is supplied by the friction of the two pieces of wood on the other side of the trap. The effort gains its strength from the notched union it shares with the upright stick that is also the fulcrum. A flat portion of the trigger stick is placed into a square surface on the fulcrum stick to hold the system together. Also popular, and easier to set, is the Paiute deadfall, consisting of three long sticks, plus a much shorter stick, along with a cord or fiber material taken from the bush to interconnect the much shorter stick (sometimes called catch stick or trigger stick) with one of the longer sticks, plus a rock or other heavy object.
Snares Snares are anchored cable or wire nooses set to catch wild animals such as
squirrels and
rabbits. In the US, they are most commonly used for capture and control of surplus furbearers and especially for food collection. They are also widely used by subsistence and commercial hunters for
bushmeat consumption and trade in African forest regions and in
Cambodia. Snares are one of the simplest traps and are very effective. They are cheap to produce and easy to set in large numbers. A snare traps an animal around the neck or the body; a snare consists of a noose made usually by wire or a strong string. Snares are widely criticised by
animal welfare groups for their
cruelty. UK users of snares accept that over 40% of animals caught in some environments will be non-target animals, although non-target captures range from 21% to 69% depending on the environment. In the US, non-target catches reported by users of snares in Michigan were . Snares are regulated in many jurisdictions, but are illegal in other jurisdictions, such as in much of Europe. Different regulations apply to snares in those areas where they are legal. In Iowa, snares have to have a "deer stop" which stops a snare from closing all the way. In the United Kingdom, snares must be "free-running" so that they can relax once an animal stops pulling, thereby allowing the trapper to decide whether to kill the animal or release it. Following a consultation on options to ban or regulate the use of snares, the
Scottish Executive announced a series of measures on the use of snares, such as the compulsory fitting of safety stops, ID tags and marking areas where snaring takes place with signs. In some jurisdictions, swivels on snares are required, and dragging (non-fixed) anchors are prohibited.
Trapping pit Trapping pits are deep pits dug into the ground, or built from stone, in order to trap animals. Like cage traps they are usually employed for catching animals without harming them.
Cage traps (live traps) in Germany Cage traps are designed to catch live animals in a
cage. They are usually baited, sometimes with food bait and sometimes with a live "lure" animal. Common baits include cat food and fish. Cage traps usually have a trigger located in the back of the cage that causes a door to shut; some traps with two doors have a trigger in the middle of the cage that causes both doors to shut. In either type of cage, the closure of the doors and the falling of a lock mechanism prevents the animal from escaping by locking the door(s) shut.
Cage-trap for squirrels With two doors open, the squirrel can see through the opening on the opposite end. Peanut butter is placed in the trap as bait to attract the squirrel. In some locations, the traps can be placed in alignment with a building, wall, or fence (nearly under one edge of a bush). The wall does not present a threat to the squirrel, and the bush reduces the exposure and view of the squirrel. A blind area (by using natural or cardboard materials) surrounding the end of the trap presents a darker, safe hiding space near the trigger and bait of the trap. Where two-door traps are not available, a piece of cardboard held in place with a brick can be put behind the rear of the trap.
Glue traps A glue trap (also known as sticky trap, adhesive trap, or glue board) is a flat panel or enclosed structure, often baited, that ensnare insects, birds, or other animals with a non-drying
adhesive substance. Trapped animals become unable to move, dying a prolonged death by
starvation,
dehydration, or
suffocation. Glue traps are widely used in agricultural and indoor pest monitoring, but criticized as inhumane and indiscriminate, trapping a range of animals in addition to the target species. They are banned or partially banned in England, Iceland, Ireland, New Zealand, Scotland, Norway, and in individual municipalities in the United States.
Types of sets The most productive set for foothold traps is a dirt hole, a hole dug in the ground with a trap positioned in front. An attractant is placed inside the hole. The hole for the set is usually made in front of some type of object which is where medium-sized animals such as coyotes, fox or bobcats would use for themselves to store food. This object could be a tuft of taller grass, a stone, a stump, or some other natural object. The dirt from the hole is sifted over the trap and a lure applied around the hole. A flat set is another common use of the foothold trap. It is very similar to the dirt hole trap set, simply with no hole to dig. The attractant is placed on the object near the trap and a urine scent sprayed to the object. The cubby set simulates a den in which a small animal would live, but could be adapted for larger game. It could be made from various materials such as rocks, logs or bark, but the back must be closed to control the animals approach. The bait and/or lure is placed in the back of the cubby. The water set is usually described as a body-gripping trap or snare set so that the trap jaws or snare loop are partially submerged. The conibear is a type of trap used in water trapping and can also be used on land and is heavily regulated. The regulations vary from jurisdiction to jurisdiction. It is normally used without bait and has a wire trigger in the middle of its square-shaped, heavy-gauge wire jaws. It is placed in places that are frequented by the fur bearing animals. ==Unwanted catches==