We recently added 10 10 week old teenagers( all ladies) to our existing flock of 1 banty roo, 1 year old leghorn, and 1 year old tiny banty hen. Anytime over the past week the banty hen runs the teenagers out of the coop and will not let them to the food and water!! She is half the size of the new girls but runs them like she is the boss. Its gets cold here at night....about 0f....and I am worried that without us putting the ladies back in coop and shutting the run door that they will be forced out at night. Any advice? We have a second flock that has intergrated no problem