My hen laid 4 eggs in 4 days and all with double yolks, then she stopped laying altogether. I know this because I was hoping to collect them to incubate and candled them. Then cracked them open. She is not even a year old yet. Gets all the good feed and oyster shells, so that can't be it. Is not visibly molting. I have searched everywhere for eggs and even kept her in the run to see if she would lay. I thought it maybe the heat but that is over and she still won't lay. So I am stumped as to what is up with her. She is a pure light Sussex and is full of life and heathy, just hasn't laid any eggs for a month now. ☹