Hi there. This is my first year with chickens. I have 10 original hens hatched in March/april and a rooster who was added to the flock in November. (1EE 2BO 2 Buff Brahma 3GLW 1 SLW and 1red.sex.link.) rooster is a blue wheaton ameraucana and the perfect roo. All my girls love him. Since he is such a doll, and of show quality I purchased 4 blue wheaton ameraucana hens from the same farm that had been his companions previous to coming to my little flock . Three days ago I put them in the coop with the rest of.the flock in dead of night. Other than obviously trying to work out the pecking order, they have been fine. Since that day I have seen a HUGE decline in eggs. Only 1-3 a day were I was getting 8-10 a day before the arrival of.the new hens. We live in New Hampshire and it.just started to get really cold So i am unsure whether the stress of the new (beautiful) hens is causing the problems or.if.its the sudden drop in temp. The coop is 7x6 chicken wire with the walls covered in plastic to keep in heat and prevent drafts, the top is just chicken wire no plastic for ventilation purposes. We put a light on from 4am-sun up. Any suggestions would be greatly appreciated!!