Irish Jack Russell is originated from United States but Harrier is originated from United Kingdom. Irish Jack Russell may grow 15 cm / 5 inches shorter than Harrier. Irish Jack Russell may weigh 19 kg / 41 pounds lesser than Harrier. Both Irish Jack Russell and Harrier has same life span. Irish Jack Russell may have more litter size than Harrier. Irish Jack Russell requires Low Maintenance. But Harrier requires Moderate Maintenance
Originating in the United States of America, the Irish Jack Russell, also known as Short Jack Russells, was bred to bring about a calmer temperament and to also have a dog with shorter legs.
Always a working dog, breeders of the Irish Jack Russell wanted to create a dog with less of a hunting instinct in him and have a dog which would be more companionable.
These Irish Jack Russells look much like your regular Jack Russell but are more of a companion dog than a hunting dog. The Irish Jack Russell doesn’t adhere to any existing Jack Russell breed standard and isn't really recognized at major dog clubs and kennels. The truth of the whole matter is that there are different kinds of Jack Russells and different names given to them to differentiate between the taller Jack Russell and the short legged one. The shorter Jack Russell Terriers are known by many names such as Irish Jack Russell and Shorty Jack Russells.
Developed in Great Britain, the Harrier is another hunting dog – a hound that primarily hunts hares and small prey. The breed itself is medium sized - smaller than an English Foxhound and larger than a Beagle. Although the definitive origins of the Harrier are not set, it is believed that he is a cross of the Basset Hound, Talbot Hound and Bloodhound. Others believe the breed is a cross of the Greyhound and the English Foxhound. The Harrier looks like a smaller version of the English Foxhound.
The Harrier is a pack dog and in 1260, Sir Elias de Midhope established the first pack in England. From there the breed spread to Wales and Western England, most used in Ireland where they hunt fox as well as hares. However, hunting hares is the specialty of the breed and even gave the breed its name. In 1885 they were recognized by the American Kennel Club in the Hound Group. Yet despite this and despite the number of Harriers working in England, they are not recognized by the UKC.
Irish Jack Russells are small dogs standing at roughly 18 to 35cm and weighing in the region of 5 to 8kg for both males and females.
He looks much like your regular Jack Russell but he has shorter legs, and where the regular Jack Russell has an essentially white coat with orange-tan patches, the Irish Jack Russell can be solid tan or other color variations such as red, brindle, black and tan.
The coat can be short or fairly long and coarse. The Irish Jack Russell is a sturdy, compact dog with a flat skull, brown eyes and ears which are semi-erect, semi-floppy. He has a bright, alert, intelligent look on his face. The tail is set fairly high and has always been docked but these days it is inclined to be left long, taking away from the dog’s nice compact look.
The Irish Jack Russell is perhaps more placid than the regular Jack Russell and that is why he can adapt to life in the city or in the country. They’re intelligent dogs and therefore easy to train and have socialized.
Even though he is a small dog, training and socialization is important as he is a feisty, stubborn, know-it-all little dog. These are dogs which can become possessive of their owner and they can become quite aggressive when protecting their family. He is a highly trainable dog but it is important to have him trained as he tends to be aggressive with other dogs.
He is busy, active, happy and inquisitive and will require regular exercise to prevent him becoming restless and destructive. He has been a working terrier and he always wants to be busy.
The Harrier is a typical hound dog much like the English Foxhound. The breed is a little smaller than the Foxhound but is muscular and large boned like his cousin. They have short hard hair that sheds and ears that hang. The Harrier is a large boned breed built for strength and stamina in the race with hares. They have broad skulls, strong muzzles, with hazel or brown eyes. They also have a black, wide nose and a high, medium length tail.
They say he has a ‘courtly grin’ on an expressive face. Being pack dogs, they must be sturdy, able to cover any type of terrain, for as long as the hare runs. It is critical that their scenting and running tools are exceptional. He is blue or yellow-pied. His feet are cat like and the chest is dropped low. He is an extremely well-proportioned dog
The Irish Jack Russell is a self-confident, energetic dog who will like nothing more than to be involved with everything you’re doing. The busier he is the better, and because he has strong hunting instincts you may find him digging in your garden for rats.
Have him trained and socialized if you want to avoid certain problems with him and remember to exercise him and provide him with the attention he craves.
He is a social dog and will pine away if you just leave him to get by on his own. Make sure that he becomes every bit as part of your family as everyone else and he promises to make you a loyal, devoted companion.
Yes, they are good with children but are very rambunctious and should be supervised with young children.
Scenting ability and wonderful personality
This breed is very adaptable as long as it gets enough exercise. He can live in the country or she can live in the city with an outlet for exercise.
Smart but stubborn at times. Therefore, his learning ability is moderate.
Your Irish Jack Russell is a dog that doesn’t battle with too many health issues, but nonetheless you still need to watch out for common health problems.
Jack Russell terriers are generally a healthy breed that can live up to 14 years of age, but still every dog is prone to the more common dog problems such as hip dysplasia, bloat, ear infections and dental disease among others.
If your Irish Jack Russell is in pain, he is lethargic and sick, don’t delay – take him to the vet right away.
It seems the only real health issue other than hunting accidents or foot and toe incidents due to hunting.is:
This abnormality in the hip socket can cause arthritis and lameness that is very painful. This is the most severe form. The Harrier can have a milder form that does not progress to this level. Hip dysplasia has a genetic component, but the environment plays a role as well and active hunting dogs are especially prone to this.
Floppy ears that hang down are always susceptible to ear infections. Check them often and clean them at least weekly.
The Irish Jack Russell is an average shedder with his short or longish coat which is easy to groom, requiring a brush once or twice a week. His nails grow quickly too and they can get caught on something and cause him damage. Trim your pet’s nails to prevent this.
Feed your Irish Jack Russell good quality dog food each day. If you feed him commercially manufactured dog food, be certain to check the feeding instructions on the packaging.
He is a small dog, and overfeeding can be just as bad as under-feeding. It’s never a good idea to just go on and on feeding your pet dry or wet kibble day after day. Add in some cooked chicken, rice, pasta and vegetables as a treat and to also provide some variety for him.
Also a little bit of raw meat occasionally can do him the world of good and you’ll see the appreciation in his bright eyes and wagging tail.
Feed a high nutrition puppy food dry food made for an energetic breed. Feed 3 times a day ½-3/4 cup each time.
Again feed a high nutrition adult food for an active breed. Feed twice a day 1-11/2 cups each time.
Outstanding health unless in a hunting accident.
The Harrier is an energetic, hunting breed that needs a lot of exercise on a daily basis. Long walks and jogging or running is good for the Harrier. If they are not working, hunting dogs they need more exercise. A fenced yard for playing is good. If this intense breed does not get enough exercise and mental stimulation, he needs there could be issues with destructive behavior and obesity. Flyball, tracking, agility, coursing, rally and hunting are great activities for this breed of dog. In addition, they are pack animals and do better in a family that has more than one dog.