The Bobcat Master of the Art of Concealment
By Erika K. Yery, Licensed Wildlife Rehabilitator
One recent January morning I got a call from a very
excited woman in Great Falls, Virginia, wanting information about bobcats. She was
wondering if it was possible that bobcats could live in the woods behind her house along
the Potomac River. For years, she has heard on and off loud and errie, sounds during the
night that sounded like noises domestic cats make, but these noises where of much greater
volume than noise housecats made. There were growls, coughs, hissing, meows, spitting and
snarling and occasional loud purring. During the past few nights in January, the noises
got so loud and frightening that she wanted to know more about what type of animal it
could be. I told her that bobcats have been observed in her area. I was curious and asked
the caller for directions to her house, as I wanted to drive there quickly when she heard
the noises again. After several futile attempts, by the time I reached her property, the
commotion had stopped. Finally, one very cold and nasty night the call came again. I was
tempted just to ignore it, but curiosity got the better of me and I did rush to the scene
of the noise. This time was a success; the loud noises were still going on when I got
there about an hour later. I stayed in the car and turned on my tape recorder to record
these very scary and eerie noises. I wanted to check with a biologist that has worked with
bobcats to confirm that these were really bobcat sounds. The recording was clear enough,
that indeed the sounds were from mating bobcats. Some day I hope to go there again and
perhaps, I will be fortunate enough and actually get the rare chance to see a bobcat.
Bobcats, Lynx rufus, are very solitary animals during the winter month, but in early
January or February, adult male bobcats begin searching for females. There are always more
females than males because males travel farther and are often killed by trappers. Male
bobcats usually breed more than one female. Fights between competing males, are not
unusual during this time and during breeding these loud and violent noises are common. The
fights are furious and fur flies. During breeding, the male bites the females neck,
and as the female quite often does change her mind, the male ends up with split ears. This
can go on for some time and the noises can go on and on until mating is completed. Males
will seek other females and females will not tolerate the male once the infants are born.
Most breeding occurs during January and February and through early April. However,
pregnant females can be found in every month of the year. Some females raise two litters a
year. There are records that bobcats in captivity have had three litters in one year.
When females are expecting they prefer dens that offer a
maximum of protection. Rocky caves are preferred if available. Otherwise hollow trees,
hollow logs, or an earth den that has been abandoned by other animals, are used. Bobcats
do little digging, but the entrance to the den can easily be identified by the odor of the
urine that is always sprayed at the entrance of the den. Gestation period for the bobcat
is 62_63 days. The average litter consists of three kittens. Babies are eight inched long
and weigh about 8 to 9 ounces. They have a grayish brown base coat of hair with many dark
spots. The babys eyes are sealed shut and when they open after 9 to 10 days, the
eyes are blue. Over the next two months, the eyes will gradually turn yellow. Kittens
crawl well at 3 to 4 weeks of age and the mother will start to feed them their first
slivers of meat around that time. After the second months, the kittens begin to come out
of the den and around 8 weeks of age the mother will begin to wean the young. Training
young bobcats to stalk their prey is a lengthily process and if food is scarce, many young
die of starvation. Young bobcats will stay with the mother until October, but with
plentiful food supply, the young will stay with the mother through winter. By late fall,
young bobcats will weigh between 10 and 12 pounds and look like smaller adults.
Bobcats are able to survive in diverse terrains. Mountain areas, swamps, desert, on farm
edges and even in edges of cities. They can survive very well as long as food is available
and reasonable cover and protection from detection. Bobcats do not migrate, although under
extreme conditions they may be forced to shift their range temporarily. They do have and
hold on to their territory. Females with kittens do most of their hunting within one mile
of their den, even though their territory can be as large as six square miles. The adult
male territory is often 10 times as large, often overlapping that of several males and as
many as 6 to 10 females. If food is plentiful, bobcats travel just far enough to make a
kill. As bobcats get most of their food by stalking or ambush, they usually do not have to
travel very far.
Bobcats eat about two pounds of food per day. They prefer to eat freshly killed meat. If
large prey is killed, the leftover food is covered with grass, dirt, often sticks, and the
bobcat returns to the carcass before it begins to spoil. Carrion is only eaten if the
animal is starving. The main diet of the bobcats consists of cottontail rabbits,
jackrabbits, mice and rats. They also eat squirrels, chipmunks, skunk, beaver, muskrat,
grouse, wild turkey and other ground nesting forest birds and their eggs. Bobcats also
kill deer especially in winter when the deer is weak and close to starvation or when
wounded or killed by hunters. When available bobcats will also kill livestock, poultry,
small pigs, lambs and sheep, as well as feral and domestic cats. Although bobcats will
kill housecats, there are records of the two species hybriding.
Bobcats usually walk from place to place when hunting. When running after game or trying
to escape enemies, they bound along. Bobcats can run a short distance as fast as 25_30
miles per hour. They do not have an aversion for water that is common with domestic cats.
Bobcats have been observed playing in water and catching fish. The sense of smell is of
extreme importance in the communication. Males and females are constantly urinating on
rocks, tree stumps, and grass to proclaim their presence and to claim their territory.
In the Great Falls area, near the Potomac River, in
Riverbend Park, as well as other areas with large forests bobcats can be found. Since they
are extremely furtive and the bobcats, Lynx Rufus, are quite often confused with the lynx,
Lynx Canadensis, it is important to know how to tell them apart. The bobcat gets its name
from the "bobbed" tail and the tip of the tail is always white with a black bar,
the lynxs tail is all black. Both species are also called wildcats. Bobcats are only
found in North America, where it is the most common wildcat. Bobcats are smaller than the
lynx and weigh between 18_22 pounds. The average lynx weighs more than the bobcat, with a
weight of 22_30 pounds and is not usually found in the Virginia and Maryland area.
Bobcats have few natural natural enemies. In some areas of the country enemies are
trappers, the mountain lion, wolf, and coyote. In urban areas, humans and dogs are the
usual enemies. Their natural defense includes speedy escapes and tree climbing. Bobcats
may be inflicted with lice, fleas, roundworm, tapeworm and often mange mites. The life
span is at least 10 to 12 years. Several bobcats in the Washington Zoological Park in
Washington, D.C. lived over 15 years. Bobcats avoid human contact and if you can share
your land, they will make good neighbors. They will keep the rodent population down.
References:
Furbearing Animals of North America, Leonard Lee RueIII Wild Cats, Candace Savage, Sierra
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