about 12 weeks but if you are haveing a space issue make them a bigger coopOh my gosh I'm so sorry. I have my chicks in a seriously overcrowded rabbit hutch because I'm afraid of cats. Now some have bald patches on their backs and I think they really need more space. I wonder how big they need to be til cats aren't a threat?
if you are going to keep them outside, the enclosure they are in MUST be protected from all sides and the sides must have hard wire cloth aprons **** I'm so sorry if you where closer i would give you some chicks:/