About 3 weeks ago a dog got 2 of my 3 hens. They were 6 months old New Hampshire Reds. We replaced the two with young pullets and were told they were about 4 months. But I'm not so sure about that. My hen hasn't layed an egg since the attack. She and the duck have bonded though. She is ok with the young chickens but they are scared of here. She doesn't peck at them anymore but sometime chases them or runs towards them. And they scramble away from her. They all sleep in the roost ok though. I live in Southern Maine so I wasn't sure if the shorter days had something to do with it. Or do you think she is still stressed out. Is it too soon to put a light in the hen house or should I wait awhile? I think the other chickens are too young to lay. I have put back the fake eggs in the nest hoping this would intice her. We feed her laying pellets and she is free range. She gets snacks of Kale, tomatoes, mealbugs.