I have two 7 month old chickens, one male, one female. I have seven 3 month old chickens, one is supposed to be male. I have four unknown sex 2 week old chicks. So the questions: 1) Is it too late to add another set of day old chicks with the 2 week olds? 2) And this one's a bit more complex. I raised my older chicks (we can them teenagers) in a cage perfectly visible to the older chickens. When we let them out, the hen established that she's the boss and the rooster was kind of indifferent. Now they travel in two groups, older 2 chickens in one set, and the other 7 on their own. Will they ever integrate? 3) The last bag of layer food was pellets. The new bag is crumbles like chick food. Is that okay? And since they're the same texture, can I give everyone chick crumbles? Due to a Chewy error, I have 6- 30# bags of chick food and only 4 chicks!