I'm a bit worried about my 1 hen. Altogether I have 3 hens. They just started laying the last day of December. Two of my hens have laid 1 egg, daily. Only 1 day did the third one lay. Why has she only laid 1 egg and has not laid since? Should I be worried? She is still acting the same, eating, drinking etc. The 2 that lay daily, are very talkative, very eager in their actions with everything. The one that doesn't lay is sorta calm and just follows along quietly. As she always has. I still cannot figure out which is the Alpha outta the 3. They all act the same and don't pick on each other. Please help?