I added 4 new hens a few weeks ago and everyone gets along fine EXCEPT that the four hens sleep outside of the two coops I have. WHY??? They sleep outside of the coop even if it is raining. My husband is thinking of constructing a little coop annex for them. If there anyway that I can get them in with my other chickens? I currrently have 15 ten week olds (one is a roo) and 2 hens in one coop... and then 2 hens monopolizing another coop as their own!!!!