Last night when my dh went to lock up the hens one of them was sitting in the nesting box. Today when I went to collect eggs the same hen was sitting in the nesting box, I thought she was just doing her bussiness and left her alone. When I went to lock them up she was still sitting there. On three eggs. I tried to jostle her out of there and saw them. She puffed up and squaked at me so i closed up the box and left her alone. So is she trying to be a mama? She is a hatchery RIR and only 6 months old.