The breed, Harrier is an ancient one where records of it being a part of the hunting pack exists way back in 1260. However, there is confusion regarding its origins due to conflicting reports reporting on its origins. Various sources state different things such as some say it was born out of the combination between dog breeds and Basset Hound or Bloodhound. Others say that Harriers came about the crossing between the English Foxhound with the Greyhound and the Fox Terrier. This breed was taken for hunting among other hunting dogs and hunted foxes and rabbits.

Present Harrier breed is medium in size. Their height when taken at the shoulder varies from nineteen inches to a maximum of twenty-one inches. Their weight varies from forty-five pounds to a maximum of sixty pounds. They are bigger than the Beagle in size but slightly smaller than the English Foxhound. However, in terms of size, they almost match the English Foxhound. Being hunting dogs, they are muscular with a strong, powerful built. They have large bones required for strength and stamina. Their coat is short, stiff and which needs daily brushing using hound gloves. Their coat color can be of various combinations of tan, black and white.

The Harriers are gentle, tolerant, good tempered dogs and a happy breed. They also go very well with children. However, as they are so active, they might unknowingly hurt, trip or topple over a child. Hence, one needs to supervise them when they are with children.

They have a strong scent which makes training is tough as they are easily distracted if they get any scent. To overcome they need early training with command "come". However, training shall take a lot of time, and requires a lot of patience as once distracted, they shall not return to the training session.

Their diet is similar to that of the Foxhound as they are both hunting dogs. The diet should have horse flesh and pudding which is an oatmeal mixture. Besides, prior to the day of hunting trip, they are not fed.

The breed, Harrier has many moods, when relaxed it is quiet, gentle and keeps a low profile. However, when excited, it is the opposite, very active and alert and on the move. It is raring to go places. They have enormous energy levels and never seem to tire out, forever jumping, playing and running.

The Harriers need to have their daily dose of exercise like long walks, running, fun games of fetch. This is required due to their energy needs. They need to be active and not left alone or else due to boredom they become restless and shall behave in a disorderly manner, and can be destructive too. They can break or tear things, bark constantly or dig up the ground or garden. Due to their hunting instincts, they keep sniffing the ground, loves to trail and explore. Hence, it is imperative to keep them in a fenced or closed or tie them with a leash to prevent any unintentional damage or injury.