Our groundhog trapping methods reduce the time needed for our groundhog trappers to remove the animals, targets only the animals that are the problem and ensures they're all gone. We build custom trap sets around the animals entry point or burrow entrance for groundhog removal. Using cameras and other methods, we verify all groundhogs have been removed before closing up. In the case of a groundhog removal, there can be 2-4 animals that will need to be removed. Our trapping methods can often remove all of these animals in 1-3 nights, and they will never leave the trapping area.
Most other Companies use bait trapping when groundhog trapping. With bait trapping it is very possibly you will not catch them at all and it can take upwards of two weeks to do so if you do. During this time, those animals will still be roaming your and property causing damage.
Description and Identification
Woodchucks belong to the family Sciuridae (the squirrel family) and are related to other "marmots" that occur in the western United States. They are a stocky animal with a relatively flat head, blunt muzzle, short legs, and a bushy tail. Their fur is yellowish-gray brown to blackish with the underside often lighter. Woodchucks have small ears and large black eyes. Woodchucks weigh seven to 14 pounds. Males are typically larger than females. Woodchucks are approximately 20 to 25 inches long, including the tail.
Woodchuck tracks are fairly easy to identify. They have four toes on the front paws and five toes on the back paws. The tracks will be spaced about four inches apart when walking and twelve inches apart when running. Woodchuck prints are about one and a half inches long.
DroppingsWoodchucks defecate in toilet chambers they dig underground. If you find droppings on your property they are from an animal other than woodchucks.
Woodchucks occupy a variety of habitats in Illinois but prefer open, well-vegetated areas such as crop fields, meadows, or pastures that are close to a woody edge. They are commonly seen in brushy or weedy areas along fence rows or road right-of-ways. Since they spend much of their time underground, they avoid low-lying areas that flood regularly. The daily home range of a woodchuck varies from 20 to 30 yards to several hundred yards.
Distribution and AbundanceWoodchucks are common throughout the state. They typically live in densities of one or two adults per acre, although in prime habitat there may be more.
ReproductionWoodchucks do not breed until their second year. Breeding occurs in late February or March. The gestation period is 31 to 32 days, with four to five young born in April or early May. Woodchucks have one litter per year. Young woodchucks will start looking for their own living space when they are approximately two months old.
Woodchucks feed primarily on plants such as clovers, grasses, ferns, leaves of bushes and trees, and fruit. In early spring, they eat bark and small branches before the new plant growth emerges. If they have access to garden and field crops they will eat beans, peas, carrot tops, alfalfa and soybeans. They also occasionally eat snails, insects, eggs and young birds. They are also known to climb trees to reach buds and leaves. An adult woodchuck can consume one to one and a half pounds of vegetation per day.
Woodchucks are diurnal (most active during the day), particularly in the early morning and late afternoon hours. They stay close to their burrows when feeding and typically only stay above ground a couple of hours per day.
Unlike most mammals in Illinois, woodchucks are true hibernators. They begin hibernation in October or November and come out of hibernation in mid- to late February. Researchers have found that while in hibernation a woodchuck's body temperature drops from about 97°F to 34°F, its breathing slows to approximately one breath every six minutes, and its heart beats only four times per minute.
Woodchucks live primarily underground in burrows dug on land with a slight slope. They excavate winter and summer burrows. Winter burrows are often dug in wooded areas and have only one opening. The hibernation nest is located at the end of the burrow, lined with grass, and blocked off with soil during hibernation. In the spring, the woodchucks emerge from hibernation and move to grassy areas or agricultural fields where they dig a summer burrow. The summer burrow has two or more entrances. The main entrance is typically ten to twelve inches wide and will have a mound of soil next to it. Other entrances are dug from below the soil surface and lack the mound of soil. These entrances provide the woodchuck with quick access to the burrow to escape from predators. Often more than one summer burrow is excavated. Each burrow system can be quite extensive, with a main nest chamber, a toilet chamber located away from the main nest, and additional chambers found throughout the burrow.
Except during the breeding season, when a male and female will share a burrow, woodchucks are typically solitary animals. They are territorial and will defend their burrow against intruders. When threatened they chatter their incisors and use short, sharp whistles to warn other woodchucks of danger. Woodchucks are not fast runners, but are capable of defending themselves when threatened.
The average life span of a woodchuck is three years. Coyotes, foxes, bobcats, weasels, dogs, owls, and hawks prey upon woodchucks. Woodchucks are often killed by vehicles, because they move relatively slowly.
Currently there are no approved repellents or toxicants for woodchuck control in Illinois.
Carbon monoxide gas cartridges can effectively kill woodchucks. You will need an animal removal permit from the Illinois Department of Natural Resources before using fumigants to control woodchucks.
Because gas cartridges pose potential fire and gas accumulation hazards, they should never be used near homes or other buildings. For best results, burrows should be treated on cool, rainy days or during periods of woodchuck inactivity to make sure the woodchuck is in the burrow and not out foraging for food. Vacant burrows may be reoccupied by woodchucks from nearby areas so all fumigated burrows should be rechecked weekly for a month. Other species may also take over the burrow, so keep an eye out for signs (tracks, scat, food remains) that show a fox, coyote, or other animal has moved into the burrow.
Removal of a woodchuck is only necessary if the animal is causing substantial property damage or is a public health or safety concern. Since it is difficult to modify habitat to discourage woodchucks, be prepared to have other woodchucks take up residence on your property if you remove the animal that is causing damage. Exclusion is a better method to control woodchucks than removal.
To remove a woodchuck from your private property, you will need an animal removal permit from an Illinois Department of Natural Resources.
Public Health Concerns
Woodchucks can be carriers of tularemia, but they are not considered a public health risk. Tularemia is caused by the bacterium Francisella tularensis. Symptoms can include fever, chills, headache, diarrhea, joint or muscle pain, and weakness. People can contract the disease from handling infected carcasses.
Abandoned woodchuck burrows provide shelter for a number of wildlife species including rabbits, raccoons, foxes, skunks, weasels, and opossums. Additionally, woodchucks move large amounts of subsoil when digging their burrows, which helps to aerate and mix the soil.
In Illinois, woodchucks are protected as a Game animal. Woodchucks in urban areas that cause problems may be removed if an animal removal permit is issued by an Illinois Department of Natural Resources.