Can 10 week olds go out for good.. They are still in a brooder cage with a light... But really I've had something else come up and I need that space. They look like they are all feathered. It hasn't been above freezing here and the nights still going to be in the low 20s and the days will rise to the 40s. But it is still winter... They do run out in the barn free during the day and don't seem to be bothered. I'm afraid that them being used to the light when they want it they will get sick...