I have 2 silverlaced wyandotte hens, 2 EE's and 2 light brahmas (the EE's and the bramahas are about 3 weeks younger than my other girls) and they aren't laying. I feed them all 2-3 times a day, plus they get treats like apples and free range in the backyard when the weather is nice. They aren't laying, they are moving the ceramic egg out of the nest box and letting the rooster keep the nest box as his bedroom. What do I do? I'also have a dog that sadly killed an 8 week old hen in front of them over the summer, could they be so traumatized they won't lay? how do i fix it?