Behavior is one's response to its surroundings and circumstances. A understanding of sheep behavior is essential to making the raising and
handling of sheep less stressful for both the sheep and shepherd.
It will also dismiss the notion that sheep are a stupid animal.
Sheep are best known for their strong flocking (herding) and following
instinct. They will run from what frightens them and band together
in large groups for protection. This is the only protection they
have from predators. There is safety in numbers. It is harder
for a predator to pick a sheep out of a group than to go after
a few strays. Flocking instinct varies by breed, with the fine
wool breeds being the most gregarious. It is this strong flocking instinct that allows one person to look after so many sheep.
Follow the leader
When one sheep moves, the rest will follow, even if it does not seem to be a good idea. The flocking and following instinct of sheep is so
strong that it caused the death of 400 sheep in 2006 in eastern
Turkey. The sheep plunged to their death after one of the sheep
tried to cross a 15-meter deep ravine, and the rest of the flock
Even from birth, lambs learn to follow the older members
of the flock. Ewes encourage their lambs to follow. The dominant
members of the flock usually lead, followed by the submissive
ones. If there is a ram in the flock, he usually leads.
Sheep are a very social animal. In a grazing situation, they need
to see other sheep. In fact, ensuring that sheep always have visual
contact with other sheep will prevent excess stress when moving, handling, or housing them. According to animal behaviorists, a group of
five sheep is usually necessary for sheep to display their normal
flocking behavior. A sheep will become highly agitated if it is
separated from the rest of the flock.
In addition to serving as a protection mechanism against predators,
this flocking and following instinct enables humans to care
for large numbers of sheep. It makes sheep easier to move or
drive and enables a guardian dog to provide protection for a
large flock. Domestication and thousands of generations of human
contact has further strengthened this trait in sheep.
Domestication has also favored the non-aggressive, docile nature
of sheep, making it easier for people, especially women and
children, to care for sheep. Sheep were one of the earliest
animals to be domesticated, and they have been thoroughly domesticated.
It is doubtful they could survive in the wild, if a predator
Senses are the tools that animals use to interact with their
environment. Sheep and other animals share five basic senses:
sight, sound, smell, taste, and touch. As a prey animal, sheep
must have excellent senses to ensure their survival.
Sheep depend heavily upon their vision. Behavior scientists
speculate that the placement and structure of the sheep's eyes
are due to nature's designation of sheep as a prey animal. Sheep
have a very large pupil that is somewhat rectangular in shape.
The eyeball is placed more to the side of the head, which gives
sheep a much wider field of vision. With only slight head movement,
sheep are able to scan their surroundings. Their field of vision
ranges from 191 to 306 degrees, depending upon the amount of
wool on their face.
On the other hand, sheep have poor depth perception (three
dimensional vision), especially if they are moving with their
heads up. This is why they will often stop to examine something
more closely. Sheep have difficulty picking out small details,
such as an open space created by a partially opened gate. They
tend to avoid shadows and sharp contrasts between light and
dark. They are reluctant to go where they can't see.
For many years, it was believed that sheep and other livestock
could not perceive color. But, it has since been proven that
livestock possess the cones necessary for color vision. Research
has shown that livestock can differentiate between colors, though
their color perception is not equal to humans.
Sheep have excellent hearing. They can amplify and pinpoint
sound with their ears. In fact, sound arrives at each ear at
a different time. Sheep are frightened by sudden loud noises,
such as yelling or barking. In response to loud noises and other
unnatural sounds, sheep become nervous and more difficult to
handle. This is due to the release of stress-related hormones.
To minimize stress, the handler should speak in a quiet, calm
voice. Sheep should not be worked in the presence of barking
Sheep have an excellent sense of smell. Their olfactory system
is more highly developed than humans. Sheep know what predators
smell like. Smell helps rams locate ewes in heat. It helps ewes
locate their lambs. Sheep use the sense of smell to locate water
and detect differences in feed and pasture plants. Sheep are
more likely to move into the wind than with the wind, so they
can use their sense of smell.
Since most of their body is covered with wool or coarse hair,
only the sheep's lips and mouth (and maybe ears) lend themselves
well to feeling behavior. This is why electric wires on a fence
need to be placed at nose height of the sheep. The sense of
touch is important in the interaction between animals. Lambs
seek bodily contact with their mothers. Ewes respond to this
touching behavior in many ways (e.g. milk letdown). Groups of
animals that have body contact remain calmer.
Sheep have the ability to differentiate feedstuffs and taste
may play a role in this behavior. There is no evidence to suggest
that sheep can balance their own ration when provided with a
variety of feedstuffs; however, they may be able to seek out
plants that make them feel better.
Normal sheep behavior
Changes in normal behavior can be an early sign of illness in
sheep. The most obvious example of this relates to the sheep's
most natural behavioral instinct, their flocking instinct. A
sheep or lamb that is isolated from the rest of the flock is
likely showing early signs of illness (unless it is lost). Even
the last sheep through the gate should be suspected of not feeling
well, especially if it is usually one of the first.
Appetite is another strong indicator of health. Healthy sheep
display normal eating and cud-chewing behavior. They will chew
their cuds for several hours each day. Healthy sheep are eager
to eat. They are almost always hungry. They will overeat, if
we let them. Sheep bleat in anticipation of being fed and will
rapidly approach the feeding area.
Lack of appetite is probably the most common symptom exhibited
by a sick sheep. At the same time, food is an excellent motivator.
Next to a good herding dog, a bucket of grain is usually the
best way to gather and move sheep. Supplemental feeding tends to make
sheep friendlier and less intimidated by people.
Sheep spend about fifteen percent of their time sleeping, but
may lie down and rest at other times. Upon rising, they often
defecate and stretch. A sheep that is reluctant to get up is
probably in pain. A sheep takes a long time to lay down is probably
in pain. A sheep that cannot relax is under stress. Teeth grinding
is another common sign of pain in sheep.
Healthy lambs nurse frequently, one to two times per hour during
the first few weeks. A lamb that bleats all the time is probably
hungry and not getting enough to eat. A healthy lamb usually
stretches when it rises. Conversely, an unhealthy or hungry lambs often stands scrunched up. Healthy lambs sleep 8 to 12 hours per
day. At nap time, they seek out their mothers and will sleep
as close to her as possible.
Healthy lambs are usually very active. Group play is very common.
Lambs love to climb. They are naturally curious of their surroundings.
This curiosity can lead to barn yard accidents, if there are
risks present. As lambs get older, they spend less time with
their mothers and more with their peers. They spend more time
foraging for food. Play wanes after about four months.
Watch out for rams
While sheep are generally docile, non-aggressive creatures, this
is not necessarily the case with rams (intact males), especially during the breeding
season (rut). Rams can be very aggressive and have been known to cause
serious injuries, even death, to people. A ram should never
be trusted, even if it is friendly or was raised as a pet. It
is important to always know where the ram is and to never turn
your back on him. Children and elderly should be restricted access to rams, especially
during the breeding season. As management of an aggressive ram can be difficult, overly aggressive rams should be culled.
Head butting is both a natural and learned behavior in sheep.
Classic head butting among rams is highest during the rutting
season which precedes the onset of heat in ewes. It is a way
for rams to get into physical shape for the breeding season
and to establish (or re-establish) the dominance hierarchy.
To discourage butting, you should avoid petting or scratching
a ram on the head. Otherwise, the ram may see this as a challenge
or aggressive behavior. In general, the ram sees you as part
of the flock and wants to dominate you.
The only time ewes may exhibit agressive behavior is after
lambing -- to protect their young.
<== SHEEP 201 INDEX