Passage: The average bobcat lifespan is 7 years long and rarely exceeds 10 years.  The oldest wild bobcat on record was 16 years old, and the oldest captive bobcat lived to be 32.Bobcats generally begin breeding by their second summer, though females may start as early as their first year. Sperm production begins each year by September or October, and the male is fertile into the summer. A dominant male travels with a female and mates with her several times, generally from winter until early spring; this varies by location, but most mating takes place during February and March. The pair may undertake a number of different behaviors, including bumping, chasing, and ambushing. Other males may be in attendance, but remain uninvolved. Once the male recognizes the female is receptive, he grasps her in the typical felid neck grip and mates with her. The female may later go on to mate with other males, and males generally mate with several females. During courtship, the otherwise silent bobcat may let out loud screams, hisses, or other sounds. Research in Texas has suggested establishing a home range is necessary for breeding; studied animals with no set range had no identified offspring. The female has an estrous cycle of 44 days, with the estrus lasting five to ten days. Bobcats remain reproductively active throughout their lives.The female raises the young alone. One to six, but usually two to four, kittens are born in April or May, after roughly 60 to 70 days of gestation. Sometimes, a second litter is born as late as September. The female generally gives birth in an enclosed space, usually a small cave or hollow log. The young open their eyes by the ninth or tenth day. They start exploring their surroundings at four weeks and are weaned at about two months. Within three to five months, they begin to travel with their mother. They hunt by themselves by fall of their first year, and usually disperse shortly thereafter. In Michigan, however, they have been observed staying with their mother as late as the next spring.

Question: In what state have they been seen to stay with their mothers into the next spring?
Michigan