I originally bought a tractor back in July with 3 hens (age?) which they laid 1-3 eggs a day. They ate well. I bought a young RIR rooster who was only 3 months old but good size and tried to intergrate him into the group. The lead hen had him on his side and probably would have killed him. I put a dividing fence between the rooster and hens with housing and a roost for the rooster attached to the tractor so I could move it around. I don't know if was the cold or me putting the now larger rooster in with them, They have submitted to the much larger occupant and relations are good now. I've seen him try to mount(whatever the proper word is for mating, getting it on) the hens ecspecially one of them. But now they all are not really eating very little unless I go out there and throw some on the ground for them, then they act like they are starving or they like to just to peck their food. They do drink their water. I am now getting 0-1 egg a day. It has turned off colder. I have enclosed a nice house with plenty of room and move the tractor every 3-4 days. What should I do? Please help. ]From an inexperienced father:/. Thanks.