Toms are not too vocal. They respond, but they don't do a lot of squallin'. The females are the ones that turn it loose when they're in heat. Like you probably wouldn't even imagine! Young ones are vocal too, but when the males get up towards 2 yo they go pretty quiet. They still respond to other cat's calls, and they make small noises in response. (I finally got a good Tom call in my Library this year.)