One of my production red's has layed Jumbo eggs with double yolks in the egg,...9 days in a row so far! I got her with 3 other pullets,..but I suspect she's an older bird. The other 3 are laying some small eggs,.....but this big ol bird is like a jackpot! They're all on straight laying pellets %16,...and some oyster shell. Coop kept,....don't free range. Just wondering if this will continue? Will all of her eggs be like this???