im FINALY getting my chicks this weekend!!!!!! im planing on brooding them in my shed out back. i have large 4'x4' wooden crate to use as a brooder pen/box . i will have a light on during the day but as colorado is realy cold at the moment i was woundering how many heat lamps i should have on them to keep them warm enough? i have a small heater i can put out their to at night if it gets realy cold. we will be getting 12-16chicks.