This is our first time with chickens and we are learning the ropes as we go. Our chicks just laid their first eggs ( 3 out of 5 chicks) 10 days ago and since then, I have only gotten 1 egg (the same color & size) a day. Is this normal? I have RI Reds, 2 Black Sexlinks & 1 Golden Comet that are @23 weeksold. Fan in the coop, egg layer pellets, fresh water, scratch & just started Oyster Shell. 2 of the eggs were similar looking and pretty good size for first eggs, but none since and the one was a small brown egg, which we get everyday. What is going on? My grandson was so thrilled when he found the eggs. Thanks for any suggestions!