I have my little emu chick and he/she is getting pretty big now. The chick is about 3 weeks old now and doesn't seem to be using the heat lamp as much. When do Emu chicks stop needing a heat lamp? When can they safely go outside? And what temperature is too cold for them once outside? It is still cold here at night and occasionally still freezes, so i won't be putting the baby outside for a while. Just wanting to know when I can so I can plan ahead a little bit.