This dog is known as the old English shepherd and it is a medium size dog that has a lavish coat over its compact body, which is also muscular and very agile. The name bobtail is not by any means an exaggeration of the word; its coat indeed is very lavish without being excessive though. When picking out one of these dogs make sure that it has a solid body and that its body is square. The average height of a male is sixty-one centimeters and the female fifty-nine centimeters. Its eyes are brown or blue and sometimes one is brown and one is blue. Its ears are small, hang near the head, and are moderately covered in hair. The skull is pretty square and its nose is big and black. It has a good-sized neck, which is strong and curved. This dog is taller than it is in length and this gives it quite an interesting look. Its tail is cut to a stump and this characteristic is what gave this dog its name actually. Its front legs are straight and the hind legs are rounded and muscular; the hock is very low. The coat of the bobtail is wiry and it isn't curly or straight, it should be woollier. The hind legs should be more covered in hair than the front ones. The color of this dog is grayish, blue, with or without white parts. Brown versions are a defect.

Ideal owner:
This very hairy and strong dog is very self-sufficient and has a great character. It can get easily excited and can become fixed on something. They enjoy being around children but they are quite rough when they play which is why it is not suggested to let them be around smaller children and it will be necessary to supervise the kids when they interact and play with the dog. This dog is fearless and is excellent as a guard dog, however it is not a fighter. It will be necessary to train the dog in a firm consistent way so that it remains obedient.

A bobtails weight at birth is usually around 280 to 450 grams. It is born white and black and its nose is not pigmented. A few days after its birth the nose should start it pigmentation process and it usually finishes between eight and twelve weeks of age, although on some occasions it can take a bit longer. The tail is usually cut a few days after it is born and this must be done as closely as possible to its body. The future owner should choose a puppy that is extroverted and happy looking. Make sure to check that the nose is well pigmented and that the front legs are straight and that the dog is able to move around freely without problems. Their eyes vary in colors from brown to blue and there are also cases where a bobtail has one blue eye and one brown eye. The coat of this dog needs and requires special attention from the moment it is small and it will need even more attention during shedding stages.

General health:
Bobtails do have or can have a fair amount of health problems but this does not mean that they aren't healthy dogs. To the contrary, the average life span of this dog is anywhere from ten to fifteen years. The most important aspect to check into is hip dysphasia and X rays are an absolute must. Wobbler syndrome has also been reported and the first stage of this syndrome is partial limping of the front legs and it can occur to all four legs, the first symptoms usually occur at the age of three to twelve months. The most common problems that affect this breed are related with skin and hair problems. Blindness and cataracts have also been seen. The care that must go into their coats is extremely important and the owner will need to commit to a minimum of four hours weekly of brushing, paying special attention to the areas of the ears, neck, chest and legs. The ears and the bottom of their feet need to be kept free of excess hair to avoid irritations and infections.

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