Am looking to move my Silkie chicks outside at 8 weeks, does anyone think that is too early? At present they are 5 weeks old, 7 of them, in a 4x2x2 stock tank. They are feathering well and am hoping they will be fine outside. I do have a heat lamp that I can put on for them at night if it gets too cold. (It will be on as I am a soft touch towards my chicks......)