my 6 month old pullets went out when they were 6 weeks as they were fully feathered and it was nice temp wise then but then it got chilly so they got a heat lamp in their coop at night for a few weeks.
the 15 white leghorns i'm raising for a friend went out at 4 weeks as it was june and very nice warm out and they have done great.
so i think it depends on the temp outside and the birds having all or nearly all of their feathers
the 15 white leghorns i'm raising for a friend went out at 4 weeks as it was june and very nice warm out and they have done great.
so i think it depends on the temp outside and the birds having all or nearly all of their feathers