i got a few RIR one time and when I got them they laid small/med eggs, once they were here for a little while and were eating good (layer pellets,corn,scraps) they started laying real nice large/extra large eggs, I got 4 new hens yesterday and went out to get eggs today and found the cutest little egg from one of them, looked like one of my silkies egg. i'm guessing with my new ones it's a feed issue.