Bloodhounds were originally bred to scent
large game animals. Nowadays they are mostly used for tracking
down people, this is specifically called mantrailing. Mantrailing
and tracking are two different things. Tracking is what
e.g. schutzhunds do, they are taught to follow the exact
footsteps of the person. Tracking is thus believed to be
based more on following the scent of crushed vegetation
and disturbed earth than actual scent discrimination. This
also means that the dog is not expected to be able to discriminate
between different people that have walked in the area.
The difference between the two methods
can also be termed as a question of different training and
different requirements for working. Tracking dogs are not
given a special scent article in the beginning of the trail,
nor are there persons at the end of the trail to be identified,
like in mantrailing. Tracking dogs are also required to
work exactly or very close to the actual path, they need
to be able to find the objects (eg. marked sticks) that
the person who laid the trail (runner) has dropped on the
trail.
Mantrailing is based on scent discrimination,
i.e. the dog follows individual scent of a person coming
of the shed hairs, dead skin-cells and smaller particles
from that person's body. As the rafts and particles are
very very small in size they are carried by the wind so
when the bloodhound is trailing he may be some distance
from where the person actually walked depending on the terrain
and weather (wind, rain..). In general, humid ground is
easier and very dry ground is more difficult for mantrailing.
On very dry ground the scent tends to be more faint, while
on moist ground the scent is easier to follow. Also, open
area is more difficult as the wind may blow the scent away
from the trail. Wooded area is easier as the scent tends
to stay closer to the actual trail.
The bloodhound is scented in the beginning
of trail with the trail layer's scent item, eg. a piece
of clean (/sterile) cotton pad, T-shirt, sock etc. that
the person has been wearing next to his/her skin at least
for 30 minutes. The scent item is placed in a clean non-used
plastic bag (preferably minigrip bag which can be closed
& sealed tightly). When the dog is scented, at the same
time it is given the command like "Find" (or whatever the
handler wants to use). Do not use this word for anything
else.
To get started with the puppy
When the puppy is roaming free, ask another
person to hold him. Draw the puppy's attention to you, run
away (eg. behind a tree or a bush), so the puppy sees where
you went but cannot see where you are. Ask the person holding
the pup to let go when you're almost in your hiding place.
If the pup does not seem to be interested in running to
you, you can call his name to motivate him. When the pup
finds you make a big fuss and play with him. Let him know
this was the best thing he has ever done.
Little by little make these practice trails
more difficult, make the distance longer, do it in heavy
woods so the pup does not see where you went but he has
to use his nose. Use other people to run the trails, make
the time longer, so that you wait a minute or two before
letting the dog go.
Bloodhounds are so natural with the hide
and seek game, that most of them instantly know what to
do and they just love it. They do not have to be trained
with treats like tracking dogs are trained by placing pieces
of treats along the path - DO NOT DO THIS - it is unnecessary
for Bloodhound and can even be detrimental when you want
to train the dog to do mantrailing, not tracking. In the
beginning the person hiding at the end of the trail might
have some treats to give for the pup, but those are not
necessary either: the biggest reward for a bloodhound is
the joy of finding the person.
Scent discrimination training
Have two persons to do the following:
on a field or other open area, have them walk side by side
together straight ahead for about 50 meters, then split
90 degrees to left and right and both walk another 50 metres
or more and stop.
The dog sees this all the time and he
is scented with the other person's scent article. The dog
should run to the correct person. If he does not but goes
to the wrong one first, tell the person to either not react
at all (if the dog is not reacting very eagerly) or to react
angrily by saying "Bad dog!" or something like that (if
the dog is eagerly happy as if he was saying "This was the
person"). Also the handler can correct the dog verbally
and tell him to "Find!" again.
If the dog immediately goes up to the
right person, make a big fuss (both handler and the identified
person) and tell the dog what a good dog he is. In the beginning
do not use two persons of the same household (they partly
share the same scents, so it can be more difficult for the
dog).
Gradually make this training more difficult:
the other person is a close friend of the dog (eg. your
spouse), and the other one (to whom the dog is supposed
to trail) a complete stranger. Have more than two persons
for it, have the persons to walk actual trails so the dog
does not see it: first together, then splitting, later on
maybe getting back together, or crossing each others trail
etc. But do it gradually.
Remember still: it is not wrong if the
dog goes to all people at the end of the trail, what counts
is how the dog reacts to them. When the dog has been trained
to identify the "victim", he will only check the other people
and identify the correct one.
Identification training
Sign of identification can be trained
for the dog, it is a special behavior that the dog does
when he identifies the person. Such behaviors include sitting
& pawing, jumping up against the person, barking etc. As
bloodhounds do not bark this is not easy with our breed.
Depending on the temperament of the dog, pawing or jumping
can be good choices. A very lively dog that loves to jump
on people may not like to sit down and paw after the find
- jumping is then the choice of identification. Likewise,
a very calm dog is easier to teach for sitting and pawing.
This is simply carried out by practicing:
every time at the end of the trail, the runner should make
the dog do the ID sign. After doing the ID, the dog is treated
(also clicker can be used to reinforce the behavior on the
moment the dog does what it's supposed to, in case the dog
is clicker trained). It makes things a lot easier if the
dog knows the commands already, like "Sit", "Give
a paw" or "Jump", "Up", or whatever.
Crossing trails and city trails
Practice crossed trails. The dog should
ignore all other trails there might be, either of human
or animal trails. Start practicing by having a person walk
in the woods a straight trail and mark it with ribbons.
Next day have another person to walk a trail crossing the
old trail vertically, ask him to mark the fresh trail with
other colour ribbons. Work the fresh trail. See how the
dog reacts at the crossing, if at all. Gradually, add the
number of crossed trails, decrease the time interval so
that in the end the correct trail is a lot older than the
fresh crossing one, still the dog should ignore the crossing
trails.
Work in an area where you know there are
a lot of animals (moose, deer, other dogs, people). Work
in crowded parks with lots of contaminating scents and disturbances.
But remember to decrease your requirements for the dog in
the beginning when lots of disturbances are around, first
use fresh trails and gradually make it more difficult and
rise your criteria. You can also practice with a backup
dog. This is a good way to teach the bloodhound to ignore
other dogs on the trail. Ask a friend with another dog to
walk some distance behind you when you are working the trail.
Use various other dogs, also your Bloodhound's best buddies.
It is very beneficial for scent discrimination
to practice in urban areas as asphalt and concrete are difficult
surfaces for mantrailing. With lots of people, bikes, other
dogs etc. going by all the time this is a challenge compared
to doing the same in the woods. Not to mention traffic:
cars make the scent to be blown far from where it was initially.
Typically, a bloodhound works a zig zag pattern on asphalt.
The scent does not stay on asphalt but is retained in the
grass surrounding the pavement or street. The dog keeps
checking both sides to be able to determine whether the
person walked straight ahead or turned somewhere. Bloodhounds
are fully capable of working in city environment as well
and are known to have worked even two weeks old trail in
urban area, which might seem unbelievable.
Planning and marking of trails
It is advisable to plan the routes carefully
on map. This way the runner knows what kind of terrains
he will encounter in the woods and you can plan the sites
for angles / turns on the trail on map. Try to plan the
trails so, that as many types of terrains as possible are
included in it, as well as crossing of roads, small creeks
etc.
It is also very important to mark the
trails carefully when practicing. This way the handler will
always know where the exact path goes and is able to determine
when the dog is on the trail and when not. The more you
train, the better you will come in reading your dog. You
will learn to see when he is on and off the trail by looking
his body postures, tail, lowering of head and general impression.
Use colourful ribbons for marking the
trail. Clothespins with ribbons attached to them are very
handy and re-usable. The distance of marks should be short
enough: in general you should be able to see the last two
ribbons when you look back. In open areas distance between
two marks can be longer than in heavy woods. Also when crossing
roads or creeks, it is good to mark the crossing sites on
both sides.
Correcting
A frequent question is, what to do when
the dog goes off from the trail and starts to follow a crossing
trail for example. If you clearly see the dog is not on
the trail anymore and is very determined in following the
crossing trail, call the dog and close to the actual trail
scent him again on the scent article in order to make him
continue with the original trail. Unfortunately some dogs
have very strong hunting instincts and they will ignore
human scents when game animals are around. To correct this,
determined training is required.
Scent articles
In the beginning use as "pure" scent articles
as possible - a sterile cotton pad held against the person's
skin works nicely. It will not have any other scent in it,
that could possibly confuse the dog. When the dog progresses
in training, start using variable scent articles. Using
the same type of scent article might lead to a dog that
does not accept any other type of scent items. Use car seat,
bike saddle, footprint, cigarette butt, brush, pillow case
- anything that has the scent of the person in it. As was
mentioned earlier, members of the same household share some
same scents. This can sometimes cause a problem, if the
scent article of a person actually belongs to another family
member who has also worn it, the dog might trail to the
owner of the item and not to the person who wore it last.
Air scenting
Also Bloodhounds use air scenting when
needed. Air scenting means that the dog helds its head high
and smells airborne particles giving the scent. Typically
one can see a Bloodhound air scent at the end of the trail
if the wind blows from the direction of the runner. After
getting the fresh scent this way, the dog can take a shortcut
to the runner and not follow the actual walking path. Ability
to switch from trailing to air scenting is economical for
the dog and "victim", it would be stupid to still follow
the longer route (path) if the dog got the possibility of
a faster shortcut.
Important training tips and facts
- The harness is ONLY for working. Do
not put it on the dog until right before the trail. Do
not let the dog wear the harness if you are not going
to do mantrailing. The dog must learn to understand what
the harness means
- FUN SEARCH GAME!
- Work in all kinds of weather, at all
times of the day, in different types of terrain and variable
surface (asphalt and concrete also!) and on different
people.
- Men shed 7 times more particles than
women, thus their trails have more scent than women's
trails.
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