The guessing part is sweet agony, the Wyandotte (Lucy) I thought started laying first still lays really small eggs. Her sister (Cher) has been caught in the act laying one of the largest most beautifully colored egg ever. I wanted to kiss her. Who knows what the heck is going on in there. The EE that wouldn't put out (playing hard to lay) started laying gorgeous eggs right from the start. I think though there is obviously a science to it all, those darn chickens hold all the cards. I wish they wouldn't pick on the EE (Honey) she's smaller, gentler but boy! she's the biggest producer! I told them one day I was going to Chicken Protective Services on them if they keep it up.