Hi
My chicks are 7 weeks old ( Just the 3 off them) they have been out side for the last week during the day, temperature has been 38/40 degrees
At night i bring them in doors No heat lamp, just the heating in the house.
They are fine during the day, infact they seem to want to go out in the morning and get some fresh air, even if there is still a lil frost !
However, they do like to come in at night and get snuggled ! or maybe i think they do lol
Id be cold out there at night. one thing i have found is that their body temperature seems to hold itself now, whn i bring them in, altho the outside temperature is cold they r very warm, Infact i thought one had poo ppod on me when i picked him up ( felts some thing warm on my hand) but it wasnt, it was his feet!
Hope this helps
Nicky