the species you are likely to catch with each trap type; pro- vide guidance on on what materials to use to bait traps; provide instructions on how to set traps;
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WEC327How to Use Traps to Catch Nuisance Wildlife in Your Yard 1Holly K. Ober and Arlo Kane 21. This document is WEC327, one of a series of the Department of Wildlife Ecology and Conservation, UF/IFAS Extension. Original publication date October 2012. Revised November 2018. Visit the EDIS website at https://edis.ifas.u˜.edu for the currently supported version of this publication. 2. Holly K. Ober, associate professor/Extension specialist, Department of Wildlife Ecology and Conservation; and Arlo Kane, regional coordinator of the Landowner Assistance Program, Florida Fish and Wildlife Conservation Commission; UF/IFAS Extension, Gainesville, FL 32611. The use of trade names in this publication is solely for the purpose of providing speci˚c information. UF/IFAS does not guarantee or warranty the products named, and references to them in this publication do not signify our approval to the exclusion of other products of suitable composition. The Institute of Food and Agricultural Sciences (IFAS) is an Equal Opportunity Institution authorized to provide research, educational information and other services only to individuals and institutions that function with non-discrimination with respect to race, creed, color, religion, age, disability, sex, sexual orientation, marital status, national origin, political opinions or a˛liations. For more information on obtaining other UF/IFAS Extension publications, contact your county™s UF/IFAS Extension o˛ce. U.S. Department of Agriculture, UF/IFAS Extension Service, University of Florida, IFAS, Florida A & M University Cooperative Extension Program, and Boards of County Commissioners Cooperating. Nick T. Place, dean for UF/IFAS Extension. When wildlife become a nuisance in your yard, there are three general approaches you can take (see EDIS publica -tion WEC323 , fiOverview of how to stop damage caused by nuisance wildlife in your yard,fl for a description of all three approaches). You can make habitat modi˜cations, use deterrents, or trap animals. In most residential settings, making habitat modi˜cations or using deterrents will be both simpler and more e˚ective than trapping. See EDIS publications WEC325 , fiHow to modify habitat to discour -age nuisance wildlife in your yard,fl and WEC326, fiHow to use deterrents to stop damage caused by nuisance wildlife in your yard,fl for more information on these approaches. However, trapping is warranted in certain situations when trying to solve con˛icts between people and wildlife. ˝is document provides information on stopping wildlife damage through the use of trapping. We describe several of the trap types most commonly used to capture wildlife; list the species you are likely to catch with each trap type; pro -vide guidance on where to set each trap; make suggestions on what materials to use to bait traps; provide instructions on how to set traps; describe safety issues associated with setting traps and safety issues caused by dangerous animals you may catch; provide suggestions on how to handle captured animals and what to do with them a˙er capture; and, ˜nally, describe legal regulations regarding trapping and relocation. When is trapping warranted? Before you begin to trap animals, it is important to realize that trapping is o˙en only a temporary solution to nuisance wildlife problems. Trapping is far more e˚ective when ani -mals need to be removed from a building than when they are causing a problem in an outdoor setting. If the habitat quality in your yard is high and the abundance of wildlife in the area is high, it will not take long for new individuals to move in once you have trapped the original out. It is also important to realize that trapping requires patience, persistence, and knowledge of the habits of the animal you are trying to capture. Trapping is not a quick ˜x to nuisance wildlife problems. Before you begin trapping, be sure you have a suitable plan for what you will do with the trapped animal. Regulations regarding the release of wild animals from traps are strict, so wait to set your live traps until you have a workable plan for how and where you will release any animals you trap. If you have a situation that warrants the use of kill traps, be sure you have a plan for dealing with the animals your traps will collect.
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2How to Use Traps to Catch Nuisance Wildlife in Your Yard Finally, carefully follow all directions on trap labels. We present general guidelines that should not supersede actual instructions provided with purchased traps. Never place traps in areas where unsupervised children and pets may trigger them. Always follow state and federal regulations regarding wildlife. Live Traps Wire Cage Traps Wire cage traps, frequently sold under brand names such as Tomahawk or Havahart, are available in various sizes, making them appropriate for catching a wide variety of wildlife species. ˝ese wire mesh traps allow you to safely and easily release trapped animals elsewhere (Figure 1). Trap sizes range from those suitable for small rodents (16 inches by 5 inches by 5.5 inches) to those suitable for large dogs (72 inches by 20 inches by 26 inches). Most reputable retailers describe which wildlife species are most likely to be caught in each of the trap sizes they o˚er. ˝e size of a trap is a more important consideration than its brand. Medium-sized traps are appropriate for many of the mid- sized mammals that regularly cause problems in residential settings, such as opossums ( Didelphis virginiana ), rac-coons ( Procyon lotor ), skunks ( Mephitis spp.), feral cats, armadillos ( Dasypus novemcinctus ), or rabbits ( Sylvilagus ˜oridanus ).Several variations of these traps are available. Many retailers sell wire cage traps in both a collapsible form (which is helpful if your storage space is limited) or rigid form (which is more durable, and therefore recommended if you expect to need to use traps regularly). Traps are also available with one door or two. Traps with two doors tend to be heavier and more expensive, but make releasing animals much easier, because animals do not have to back out the same door through which they entered the trap. Two-door traps also increase the chances of an animal ˜nding the opening of the trap since there are two openings rather than just one. However, traps with only one door may have higher capture success because animals are forced to move all the way to the back of the trap to get the bait, ensuring that the door will close completely when triggered, which may not be the case with two-door traps where bait is placed in the middle. Always place the bait for a wire cage trap on or behind the trigger mechanism so that animals are encouraged to step all the way inside the cage. When using traps with one door, consider screening the back portion of the trap where the bait is placed to prevent animals from reaching through the side of the trap to pull out the bait. Also, some species may be further encouraged to enter traps if soil or leaves are placed on the ˛oor of the trap to cover the metal mesh. Always place traps as level as possible to reduce the chances of a captured animal later rolling the trap over when trying to escape. Sherman Traps Sherman traps are also available in several sizes, all of which are meant for small mammals such as rats ( Rattus spp.), mice, voles ( Microtus pinetorum ), shrews ( Blarina carolinensis ), chipmunks ( Tamias striatus ), and gray squirrels ( Sciurus carolinensis ) (Figure 2). ˝e largest size is 3 inches by 3.75 inches by 12 inches, and the smallest size is 2 inches by 2.5 inches by 6.5 inches. It is again fairly easy to release animals from this type of trap. Figure 1. Wire cage trap. Credits: Holly Ober Figure 2. Sherman trap. Credits: Holly Ober
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3How to Use Traps to Catch Nuisance Wildlife in Your Yard Sherman traps are available in folding and non-folding forms. ˝ey are manufactured from aluminum (your choice of three thicknesses) or steel (your choice of two gauges). ˝ey are sold with solid or perforated walls and doors, in case you are concerned about the temperatures or damp -ness experienced by the animal inside. Sherman traps should always be baited to entice animals to enter. Baiting the trap for several days with the door forced to remain open may encourage animals to feel comfortable fully entering the trap before you set the trap for real. ˝e door can be held open with popsicle sticks or tongue depressors. Glueboards Glueboards are appropriate for snakes and small rodents such as rats or mice. Manufacturers typically market di˚erent boards for di˚erent wildlife species (Figure 3). For example, boards can be purchased pre-scented with peanut butter smell to entice rats and mice. Once an animal has moved onto the board and become stuck, the entire board can be moved to the location where the animal is to be set free, and cooking oil can be poured on the animal to release it from the glue. Vegetable oil will not harm the trapped animal. Steel Leg-Hold Traps Steel leg-hold traps can be used only by permit from the Florida Fish and Wildlife Conservation Commission (Figure 4). ˝e Commission only issues the permit to landowners experiencing problems with coyotes, bobcats, foxes, beavers, and otters. ˝ese traps must be checked at least every 24 hours by law. Kill Traps Snap Traps Snap traps are useful for capturing mice, rats, and voles (Figure 5). Some varieties allow the user to alter the sensi -tivity of the trap. ˝ese traps can be baited or le˙ unbaited. ˝ey are lethal to the animal captured. Scissor Traps Scissor traps can be used for capturing moles ( Scalopus aquaticus ) (Figure 6). ˝e trap must be placed above a mole tunnel. ˝e lower half of the trap should be underground, while the upper half sits above the surface of the lawn. ˝ese traps are o˙en sold with a special pair of tongs useful for setting and handling the traps. Scissor traps should not be baited. ˝ese traps are lethal. Figure 3. Glue boards. Credits: Holly Ober Figure 4. A leg-hold trap for catching mammals. Only traps commercially manufactured with padded jaws can be used in Florida. Credits: Holly Ober Figure 5. Snap trap. Credits: Holly Ober
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4How to Use Traps to Catch Nuisance Wildlife in Your Yard Harpoon Traps Harpoon traps are also useful for catching moles (Figure 7). ˝e trap should be positioned with the metal legs of the trap straddling a mole tunnel. ˝ese traps typically have six sharply sheared points. When set, the spears are retracted into the roof of the tunnel, allowing the mole to pass underneath. ˝e trap must be set so that when triggered, the points are propelled through the mole™s tunnel. If you step on the tunnel so that it is partially collapsed, a mole will later trigger the trap when it pushes dirt upward against the triggering plate to repair the tunnel, causing the springs to release the spears into the tunnel. Harpoon traps should not be baited. ˝ese traps are lethal. Choker Loop Traps Choker loop traps are also e˚ective for moles (Figure 8). As described with the harpoon trap, the choker loop trap should be set across a tunnel that you partially collapse. ˝e choker loops should be inserted into narrow slots you form across the tunnel, and the trigger should be placed in the collapsed section of the tunnel. ˝e animal will then be squeezed between the loop and the body of the trap when it is triggered. ˝ese traps are lethal. Pincher Traps Pincher traps are the best trap type for catching pocket gophers (Figure 9). ˝ese traps are o˙en called Macabee traps or cinch traps. ˝ese traps have two prongs that snap closed when an animal pushes against a vertical plate (the treadle). ˝ese traps are most e˚ective when two traps are set facing opposite directions in a gopher tunnel to enable capture of animals advancing from either direction. Pincher traps are lethal. Figure 6. Scissor trap. Credits: Holly Ober Figure 7. Harpoon trap. Credits: Holly Ober Figure 8. Choker-loop trap. Credits: Holly Ober Figure 9. Pincher trap. Credits: Holly Ober
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5How to Use Traps to Catch Nuisance Wildlife in Your Yard Conibear Traps Conibear traps are useful for capturing beaver ( Castor canadensis ). ˝e trap consists of a heavy steel square with two springs in the shape of a fiV.fl When set, the tops of the fiVfl are pressed together (Figure 10). ˝ere is a safety latch on each fiVfl so that each can be latched in place once they are compressed. A˙er both fiVfl™s are compressed, a key is inserted into the groove of the trigger and the trap placed in position. When ready, the safety latches are released. A great deal of strength is required to compress the fiVfl springs, so it is strongly recommended that you purchase fisettersfl to compress the springs with a lot of leverage. ˝e Florida Fish and Wildlife Conservation Commission allows these traps to be used only underwater (non-target species could be killed if they were set on land). Use of these traps in Florida is illegal without a permit. ˝ese traps are lethal. Baiting Traps As indicated above, some traps are meant to be le˙ unbait -ed, whereas others will never successfully capture an animal without bait. Many household food items like peanut butter, nuts and seeds, cat food and sardines are attractive to a variety of wildlife species. Baiting traps with these items that many di˚erent species like could prove problematic if you are in an area with a variety of wildlife species and you only want to catch a single species. Baits and lures sold commercially provide a safer alternative. ˝ese are o˙en more species-speci˜c, which can help prevent capture of non-target species. Finally, non-meat baits tend to spoil less quickly in hot weather and may be less attractive to pets. See Table 1 for suggestions on the most appropriate bait materials for common nuisance wildlife species. Toxic baits (i.e., anti-coagulants, or slow-acting toxicants) are legal only for the control of non-native rats and house mice. ˝ese baits must, by law, be presented in bait boxes that prevent access by other types of wildlife, pets, livestock, or children. Also, these bait stations should be placed along known travel paths of these animals, rather than out in the open where they are more accessible to unintended target species or children. Placing Traps Selecting the proper location is a key element to e˚ective trapping. Traps should be placed in areas nuisance wildlife are known to be using. Good examples include near burrows or travel paths. Traps should be faced into burrow openings to catch animals as they emerge. Traps with two doors work well when set along a wall, fence, or other barrier that encourages movement in a straight line, so that animals can be captured while traveling either direction. Timing should also be considered carefully. Set the trap only during the time of day the target species is most active to limit your chances of catching non-target species. Check each trap at least once a day if not more o˙en so that animals do not su˚er unnecessarily. When possible, set traps beneath vegetation so that captured animals have protection from the sun and rain. Relocating Wildlife Relocating wildlife is discouraged for a number of reasons. First, new individuals from the same species are likely to move into the area the original animal was trapped from if the same resources still exist there. ˝us, trapping o˙en does not solve the real nuisance wildlife problem in the location from which the animal was trapped. Second, translocated animals o˙en have diˆculty ˜nding food and shelter in the area they have been moved to, either because food and shelter do not exist in the new habitat or because other individuals have already established territories in the region. ˝ird, translocated animals may become a nuisance in the areas where they are released. Fourth, human- assisted movement of animals may further the spread of wildlife diseases to new locations. According to Florida law, trapped wildlife can only be released on the same property it was caught or on property of at least 40 acres in size within the county of capture where you have obtained written landowner permission. Figure 10. Conibear trap. Credits: Holly Ober
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6How to Use Traps to Catch Nuisance Wildlife in Your Yard Certain species, such as raccoons, can never be transported and released because of the high potential of the species to harbor rabies. Raccoons may be legally transported outside of city limits only for the purpose of euthanasia. If an animal will be relocated, the trap should be covered with a cloth to reduce stress on the animal, and transported quickly to the release location. Move animals far enough away that they will not return to their original home range (this minimum required distance varies among species). Wear gloves during the release in order to prevent bites and limit the spread of disease. Additional Sources of Information Kern, W. H., Jr. 1991. Raccoons . WEC34. Gainesville: University of Florida Institute of Food and Agricultural Sciences. Available at http://edis.ifas.u˛.edu/uw033 Kern, W. H., Jr. 1991. Rat and Mouse Control . ENY224. Gainesville: University of Florida Institute of Food and Agricultural Sciences. Available at http://edis.ifas.u˛.edu/ dh044 Kern, W. H., Jr. 1997. Control of Roof Rats in Fruit Trees . ENY224. Gainesville: University of Florida Institute of Food and Agricultural Sciences. Available at http://edis.ifas.u˛. edu/uw120 Ober, H. K. and A. Kane. 2012. Overview of How to Stop Damage Caused by Nuisance Wildlife in Your Yard . WEC323. Gainesville: University of Florida Institute of Food and Agricultural Sciences. Available at http://edis.ifas. u˛.edu/uw368 Ober, H. K. and A. Kane. 2012. How to Identify the Wildlife Species Responsible for Damage in Your Yard . WEC324. Gainesville: University of Florida Institute of Food and Agricultural Sciences. Available at http://edis.ifas.u˛.edu/ uw369 Ober, H. K. and A. Kane. 2012. How to Modify Habitat to Discourage Nuisance Wildlife in Your Yard . WEC325. Gainesville: University of Florida Institute of Food and Agricultural Sciences. Available at http://edis.ifas.u˛.edu/ uw370 Ober, H. K. and A. Kane. 2012. How to Use Deterrents to Stop Damage Caused by Nuisance Wildlife in Your Yard . WEC326. Gainesville: University of Florida Institute of Food and Agricultural Sciences. Available at http://edis.ifas. u˛.edu/uw371 Schaefer, J. 1990. Dealing with Unwanted Wildlife in an Urban Environment . WEC20. Gainesville: University of Florida Institute of Food and Agricultural Sciences. Avail -able at http://edis.ifas.u˛.edu/uw070
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