I just bought 4 marans of which one -no two - no all four wanted to sit on the same 6 eggs in the same nest. my daughter took two of them and the two that are left sit on the eggs at night but wlk around being chickens during the 95 degree days. at night they both go back in the same nest. I bought an incubator after two day of this behavior to try and finish the hatching. now for the past two nights they still pile into the same nest to sleep what can i do to make them lay eggs again ? should i put them on a roost after they go to the nest?