I have 4/5 wk old chicks that have been in my unheated mudroom since I got them. Temps have been in 50's during the day and 30/40's at night. I do have a heat lamp on them but they are probebly 60 % feathered out. For several reasons I MUST put these chicks in the coop tomorrow. So I don't have time to prep them for no heat out in the coop. Do I still need to provide heat for them or will they be ok? I am transferring them to a dog crate because they will joining my 1 yr old existing flock in the same coop. So my concern is, in order for the heat lamp to do its job it needs to be closer to the chicks and what if one of older chicks flys up or knocks over heater? So I'm thinking I will just put them in without one. Please give me some input thanks!