I have four pullets and I'm new at this - I've had them since mid October. They have a clear alpha hen and one who tends to be pushed around by her more than the others. My concern is sleeping in the cold. Tonight the three non-alpha gals went to roost, all cozy next to each other, with the Alpha gal still out in the run. When she came in she pushed the lowest status hen ("Rusty" off the roost, and Rusty moped around a little. Then she went onto the other roost, by herself. It is around 30 degrees F, and I think she'd probably be more comfortable next to others. It does get colder than this in the winter (Massachusetts). I would love to know more about pecking order and cold weather roosting. Thanks for any feedback.