I have 3 chickens all are 4 1/2 months old. One of them started laying eggs on Thursday. Today I went out and saw one of the hens laying on the egg. I'm not sure if this is the hen that laid the egg and this is normal or if this hen is actually a rooster. My only 2 options of who is laying this egg is my leghorns and one of the leghorns is laying on the egg. Any help would be appreciated. Also my eggs are really small is that normal for the first eggs. They don't seem to be getting any bigger and I have gotten an egg every single day since Thursday. Thanks for any help.