The British Shorthair may or may not be able to catch mice. It depends on the cat's own situation. Generally, cats can catch mice, but pet cats raised at home have better living conditions and do not need to hunt by themselves. To obtain food, so when you see a mouse, you may not necessarily want to catch it, but in fact, cats will catch mice.
Tips:
It is best not to let cats catch or eat mice, because mice are very unclean and may carry Parasites and bacteria.