Yeah chickens are a lot smarter than people think...mine actually made a hole in the chicken wire and got out onto the lawn... I'm starting to doubt the effectiveness of chicken wire!
you don't necessarily need smaller coops, but if you have too many roosters a bachelor pen is handy. It depends on the way they're raised if they're mean or not. Some people find that doting on them results in a friendly rooster, while others end up with a nasty bird with no respect for humans.
