They will often live just outside city limits and travel through storm drains and sewers to find trash cans and dumpsters that provide easy meals. Because of the variety of foods that a raccoon will eat , they are found just about everywhere in North America. They will eat aquatic animals such as frogs and crayfish from streams and ponds, fruits and vegetables from gardens and farms and scraps from trash cans and city dumpsters.
Raccoons are opportunistic creatures when it comes to where they sleep. Most raccoons seem to prefer sleeping in large holes in trees or hollow parts of fallen logs.
They also find shelter in abandoned cars, attics, crawl spaces, barns, and sheds. Raccoons change dens frequently, sometimes moving on to a new den every night. A raccoon may live in a tree one night and relocate to a cozy spot in your attic the next night. During breeding season and harsh winter conditions, however, they will opt to remain hunkered down in their den for more extended stays. Raccoons are excellent climbers, making tree dens an optimal location.
Mothers who are raising their young will typically find a high tree hole away from predators. Juvenile raccoons live in trees for a few months with their mother until they can forage for food on their own. The arrival of spring means the emergence of raccoons from wintering locations and into many backyards across North America.
Raccoons eat incessantly during the spring and summer months in order to store body fat for the winter, when food sources may not be as abundant. Photo: iStockphoto. The common raccoon Procyon lotor is probably best known for its mischievous-looking black face mask. Raccoons are usually a grizzled grey in colour with a tail marked by five to 10 alternating black and brown rings. Body coloration can vary from albino, white to melanistic black or brown.
An annual moult, or shedding, of the fur begins in the spring and lasts about three months. The head is broad with a pointed snout and short rounded ears measuring 4 to 6 cm. The eyes are black. Total body and tail length for adults averages 80 cm; males are generally 25 percent larger than females. Raccoons in northern latitudes tend to be heavier 6 to 8 kg than their southern counterparts 4 kg. However, fall weights for adults have reached 28 kg in some areas.
Unique characteristics The name raccoon is derived from the Algonquian Indian word arakun , meaning "he scratches with his hand. This activity, however, is probably associated with the location and capture of aquatic prey such as crayfish.
The behaviour is no doubt innate, because captive raccoons have been observed attempting to "wash" their food in the absence of water. Raccoons are able to live in a wide range of habitats. The only apparent requirements are a source of water, food, and a protected area for denning.
The best habitats are hardwood swamps, floodplain forests, fresh- and saltwater marshes, and farmland, both cultivated and abandoned. On the prairies, raccoons are most abundant in woodlot and wetland areas. This highly adaptable animal is also very common in many cities of North America.
Movements and home ranges of raccoons vary greatly depending on habitat, population density, and food supply. The home range is the area used by an animal for food, water, and shelter in its normal, day-to-day movements. In rural agricultural areas of eastern North America, home ranges between 1 and 4 km 2 are common, whereas in prairie habitat, raccoons have used areas as large as 50 km 2. At the other extreme, the area used by urban raccoons has been documented at less than 0.
Generally, home ranges of individual raccoons overlap, and there is little evidence of territoriality, especially in urban areas. As with home ranges, raccoon densities vary significantly depending on the type of habitat. Estimates of five to 10 raccoons per square kilometre are common in rural agricultural areas. In urban areas, exceptional numbers of raccoons, as high as per square kilometre, have been recorded.
However, densities as low as one per square kilometre may occur in prairie habitat. In the northern United States and southern Canada, the annual life cycle of raccoons consists of a breeding period during late winter and early spring, a growth and fattening period during the summer and fall, and a winter denning period.
In more southern latitudes, winter denning occurs only during periods of poor weather. Winter denning allows the raccoon to conserve energy in the form of fat reserves when food is not available. This is not hibernation, but a period of inactivity. Preferred denning sites include hollow trees, stumps, logs, caves, vacant groundhog or fox burrows, and buildings such as barns.
In city areas, denning sites include residential chimneys, sewers, garages, attics, trees, and culverts. Adult males usually den alone, but the family unit often dens together during the first winter. Communal dens containing as many as 23 raccoons have been reported; however, four to five is more common.
Although usually one den is used during the winter, several different dens provide sanctuary during other seasons. The species inhabits all provinces of Canada except Newfoundland and Labrador and is gradually expanding its range northward as land is cleared for agricultural purposes. During the s the raccoon was successfully introduced into Germany and the Soviet Union. Raccoons are omnivorous and will consume practically any food item, plant or animal.
They prefer corn, crayfish, fruits, and nuts, but there is a seasonal shift in diet depending on availability of food items. During the spring, animal matter, including invertebrates, or small animals without backbones, and insects, makes up the major portion of the diet. While they prefer crayfish, raccoons also consume muskrats, squirrels, rabbits, waterfowl eggs, and freshwater clams. In the summer, plant material, including fruits and nuts, becomes more important.
Wild cherries, gooseberries, elderberries, wild grapes, strawberries, and garden items such as potatoes and sweet corn are relished. They also eat frogs, small fish, turtles, beetle grubs, grasshoppers, earthworms, crickets, and snails during the summer.
Corn is the mainstay of the fall diet in most areas where it is available; however, acorns, beechnuts, hazelnuts, and grapes are also consumed. Raccoons raid the nests of insects, including hornets, bumblebees, termites, and ants, mainly for the larvae, or immature stage.
The fall diet is extremely important for raccoons in northern latitudes because they must accumulate sufficient fat reserves to sustain them during winter denning. The raccoon builds up fat over its entire body, even around the tail bone. It may be 2. In northern areas the raccoon lives on its stored body fat during the winter, but farther south where nuts and corn are plentiful it continues to hunt for food year-round.
In suburban areas, raccoons often raid garbage bins or hunt for earthworms, beetles, and grubs on residential lawns. Raccoons can also be a menace to farmers because they may eat domestic fowl and eggs.
Mating tends to take place in March in most areas. Birth of offspring peaks during May, although births have been recorded as early as March or as late as September. Year-round breeding has been reported for raccoons in southern areas. Male raccoons are polygamous, or will mate with several females in succession. Females, however, are monogamous, and will mate with only one male and will not tolerate other males after mating has occurred.
Juvenile females often breed during their first year. Juvenile males, although capable, usually do not have the opportunity to mate until their second year because of competition from adult male raccoons. Litter sizes tend to be larger in the northern part of the range. Between three and seven young per litter are common in northern latitudes; however, litters of two or three young are usually the rule in southern areas.
The gestation, or pregnancy, period averages 63 days. Raccoons are born without teeth and with eyes closed, and they weigh approximately 75 g. The eyes open at two weeks of age, and the teeth erupt at about 19 days. By about 10 days of age the young are already sporting the familiar facial mask and colour patterns typical of the species.
The young remain in the maternity den for about eight weeks and then leave to hunt for food with the female, although they still nurse from time to time for almost two months.
The adult male plays no role in raising the young. The family group, which consists of the adult female and young, is quite sociable, hunting for food together during the night and denning together during the day. The mother teaches her young to climb, hunt, and swim during their first summer. The family unit generally remains together until the adult female has her next litter, usually the following spring. The life span of raccoons in the wild is estimated at three to five years; most populations are completely replaced over seven years.
However, longevity records of 12 and 16 years have been noted in captivity and in the wild, respectively. Humans are the major predator of the raccoon. They prize its fur and take between 2 and 4 million pelts annually in North America.
As well, automobiles kill thousands of raccoons each year. Another major source of mortality is disease. Since , several thousand raccoons have succumbed annually to rabies in the mid-Atlantic and southern United States.
The disease is currently spreading north toward Canada. As well, thousands of raccoons die annually from canine distemper, particularly in eastern Canada and the United States. Parasites such as lice, fleas, and ticks are often found on raccoons, but do not appear to be a significant source of mortality.
Other raccoon predators include pumas, bobcats, coyotes, foxes, dogs, wolves, Great Horned Owls, and fishers. However, they are only a minor source of mortality.
Malnutrition and harsh winter weather play a greater role in limiting raccoon populations, especially juvenile animals. Although some records show that raccoons may be long-lived in the wild, many animals succumb during the first year of life to disease, starvation, wild predators, and trappers. In some areas annual mortality rates for raccoon populations have been estimated at 50 to 60 percent. It is primarily transmitted through saliva via bite wounds, but can also spread if saliva comes into contact with an open wound, eyes, mouth or mucous membrane.
It was first reported in Canada in eastern Ontario July It was next reported in New Brunswick during , and in Quebec during In , there were 59 cases of rabies reported in Canada, making it the third most infected animal of that year.
Ontario and New Brunswick have controlled the disease with a variety of tactics including vaccination programs. However, currently, the disease is epizootic in Quebec with 58 cases being confirmed during Raccoons can also carry a roundworm parasite called Baylisascaris procyonis.
It is very pathogenic in humans. The eggs are shed in raccoon feces and are almost indestructible. Roughly 12 people are thought to have died as a result of this parasite — mainly children.
Some people see the raccoon as a wily and persistent pest. Raccoons often cause significant damage to agricultural crops such as corn and lesser damage in orchards, vineyards, melon patches, and poultry yards. They are considered undesirable in areas being managed for waterfowl or upland game birds because they destroy nests and eat young.
In urban areas considerable damage to residential roofs, garages, gardens, and lawns has been blamed on raccoons. Often the only solution is to remove the offending animals by trapping or hunting. Problem animals are often live trapped and moved to other localities. This practice, however, may contribute to disease transmission.
Recent studies have shown that relocated raccoons travel long distances in short periods and are thus an ideal vehicle for transmitting contagious diseases such as rabies. Habitat improvement for raccoons should include the provision of denning sites such as hollow trees and logs and the planting of crops such as corn as a source of food.
However, in city areas little habitat management is needed because the raccoon adapts readily to human-made structures for shelter or sanctuary. Raccoon populations are thriving in most areas, and the species appears secure from any population decline in the foreseeable future.
Anderson, S. Jones, editors. Orders and families of recent mammals of the world. John Wiley and Sons, New York. Chapman, J. Feldhamer, editors. Wild mammals of North America: Biology, management and economics. Johns Hopkins University Press, Baltimore. Gehrt, S. Feldhamer and B. Thompson eds. Johns Hopkins Univ. Hamilton, J. Mammals of the eastern United States. Cornell University Press, Ithaca, N. Novak, M. Baker, M. Obbard, and B. Mallock, editors. Wild furbearer management and conservation in North America.
Ontario Ministry of Natural Resources, Toronto. All rights reserved. Photo: Robert McCaw. The Northern Leopard Frog Lithobates pipiens is named for its leopard-like spots across its back and sides. Historically, these frogs were harvested for food frog legs and are still used today for dissection practice in biology class. Northern Leopard Frogs are about the size of a plum, ranging from 7 to 12 centimetres.
They have a variety of unique colour morphs, or genetic colour variations. In rural settings, dens are often repurposed burrows dug by other animals.
Wild raccoons are also known to build dens in hollow logs, below rocks or brush piles, or in hollowed trees. In more urban settings, a raccoon's den may be an abandoned vehicle, a chimney, an attic or crawl space, or any other protected location they can get into. They also often take refuge below homes or underneath woodpiles.
Raccoons typically have multiple dens, and they move between them every couple of days. Because they are primarily nocturnal, raccoons during the day will be resting. These mammals are able to climb, and are sometimes seen in trees, leading some to wonder, "Do raccoons live in trees? Raccoons may climb trees in order to rest safely during the day. Most raccoons, however, will rest inside one of their dens. A hands-off approach. Many people find raccoons to be cute, and it can be tempting to approach or even feed them when you cross paths.
However, this is not a wise course of action. While raccoons out during the day may just be foraging for extra food or moving between dens, they could also be sick.
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