My nine red sexlinks are about ten weeks old,they are just starting to roost on their roosting bars wich are two by fours stagered from about a foot off the ground to about three and a half feet with the. four inch side for their feet. My problem is that three of them have decided to roost on a 3/8 inch cable that is doubled up about seven feet off the ground.( i don't even know how they are getting up there) but the real question is will this be harmful to them as far as it being to small for thier feet and should I find a way to make them stop and join thier sisters. I am new to this so any sugestions would be helpfull.