I have it narrowed down to 2 chickens I'm fairly sure it was my orpington, bellina. She was acting completely normal the day before and the day after. She does this silly run across their outdoor area. I did notice her pecking at my barred rock and swallowing the piece of feather yesterday so I gave them hard boiled egg yesterday. Should I be expecting an egg from her today? At what point do I worry she's egg bound again? Is there anything I should be giving them to prevent this happening? Thanks a bunch!