Ah well, sometimes you just have to shuffle the best you can, and cross your fingers. It's good to know you didn't do it on purpose, people do, all the time, and I always wonder what the heck they're thinking. Sounds like you took the only available road.
The mixing of the younger birds with the older should be that much of a problem. I let my 7 week old Delawares out with the rest not long ago, they're fine. Once in awhile they annoy an older bird, who will run at them, or peck one, and they all take off and go do something else. I have a new mom with 3 chicks, I never separated them from the flock at all. I usually let incubator chicks loose as soon as they're about pigeon size, and well feathered.
As long as they have plenty of space, they should be ok. Do you free range them? If you do, the older ones probably won't pay much attention to the new kids.
The mixing of the younger birds with the older should be that much of a problem. I let my 7 week old Delawares out with the rest not long ago, they're fine. Once in awhile they annoy an older bird, who will run at them, or peck one, and they all take off and go do something else. I have a new mom with 3 chicks, I never separated them from the flock at all. I usually let incubator chicks loose as soon as they're about pigeon size, and well feathered.
As long as they have plenty of space, they should be ok. Do you free range them? If you do, the older ones probably won't pay much attention to the new kids.