I have three who are in a bachelor pad - one was a single hatch and 4 weeks later I added two new hatches to his brooder. The boys will be a year this fall (sept. and oct.).
They are in one of our horse pastures - one side of the fence also borders the coop/run and our yard. So the "boys" can pace the fence, see the girls and try to attract them. Our head Roo Versace also walks/patrols the fence and sometimes we do have fence squabbles.
The three get along fairly well, have had two days where I had to put a boy in time out (tree well 4x4 fenced area around tree to keep horses from eating tree) - but for the most part they are friends.
Every once in a very geat while, one of the boys manages to escape the pasture and run around the yard. It is a funny site - the boy will chase a hen, Versace will start after the boy and the boy will change direction heading straight for me! I quickly scoop up the boy and Versace checks his hen.
Eventually the coops will be finished and the boys separated and placed with hens.