I have 5 chickens (three RIR 1 light sussex 1 speckled) 4 of which are laying (all except the speckled) and i used to get 4 eggs a day. But recently in the past week ive only been getting 3? I know my light sissex is laying and suki (RIR) because ive seen them lay. is there a way to tell which of my RIR are egg bound?