last night when I went to tuck in the chickens, two were missing. hubby came out to help look, we found one on the ground (red sexlink--idk why she was on the ground), and the other was up in the rafters, in a rubbermaid container that we have stored up there. She was sitting on eggs, so I figured today I would move her to a brooding pen, but this morning she was up and about with the other chickens. Is this normal? is she getting ready to set?