I have two buff orp hens that are making me wonder. They are both spending the vast majority of time sitting in the nesting box. One has been doing it for close to a month. The other just started doing it the other day. What's up with them? The one whos been doing it for so long hasn't laid any eggs. But the one who started a short time ago laid one today. I just recently introduced a BR roo into the coop with them. I can understand if the one went broody since I did so, but what about the other? They've never been with a roo till now. Obviously the one who has been at it for a month has had to eat and drink or it would be dead. I hope somebody can help me.