Sounds like you won the Lottery, Some are turning out to be runts and some are turning out to be quite large quite fast. I just moved some Dork X to the adult coop because the Juvenile Coop is too crowded. I struggled to figure out which one were from the first batch and which one were from the 2nd batch.
I didn't hatch as many Dork O's as I did Dork X. And the few that I did hatch out went into different systems. 2 went into the Rationed Feed flock as Buddy Birds to the CX. 3 went into the Buddy Birds of the male CX with unlimited Feed and Limited space. They ended up picking up CX eating habits and got quite large. and 2 went into the Juvenile Coop with the Dork X because they were red and none of the Dork X are red. I am going to do some photo comparisons to see Size differences after I process the last CX.
Don't give up on the Dork O's. I like them, and wish that more of them would have hatched.