Japanese Bobtail cats for sale. The Japanese Bobtail is a medium-size cat which comes in short- and longhaired versions. The most popular coat pattern is the tricolor calico (also called mi-ke): red, black and white. The stumpy tail is covered by thick fur and resembles a rabbit's tail. Japanese Bobtails are active, intelligent, talkative cats. Many describe the Japanese Bobtails as "singing" cats because they tend to chirrup melodiously even entering into entire conversations with their humans.