I have a few questions. We have 6 babies. 3 are 5 and a half weeks old and the other 3 are 4 weeks as of today. They all get along but I was wondering when we should put them in the coop? (They'd be in a seperate pen at first) And the older girls (a year old) are treated for worms so would the babies have to be? And my last question is when do the little ones switch to a different feed than chick start?