I have had them now for 2 weeks. they joined my original wyandotte and my other warren. Roxy [the black and white wyandotte] has made sure she is the boss. They took 3 days to even come out the hen house, when a bird came over, they hid under a bush...now they chase them away, are starting to get some feathers and all are eating me out of house and home. I have had a beautiful egg from lisa...the weakest girl. Aww bless. they are called roxy daisy lisa martha and maureen.  I was just wondering if i should give them extra heat on these cold nights, seeing i can see mainly bare skin or is loads of hay ok. many thanks,