When can i let the chicks out all day and night? They are almost 6-8 weeks old. Rarely lower than 40 at night...they are currently in my basement with no more heating lamp.
How many chicks? The more the better, they'll just hunker down together for warmth at night. As soon as they have most of their real feathers they're usually Ok to put out with no heat, especially if you haven't been providing any.