OK, we had some losses. We also have a broody hen and a rare opportunity to just get a few day-old chicks. Can I just take the day olds and stick them under her? Will she think she hatched them and raise them as her own? Also, we are out on the olympic peninsula....daytime highs are 60 at best and nighttime has been getting chilly. Is it too cold here to try and give broody hen new chicks? Should we heat the coop? Our girls are all Russian Orloffs. Available chicks will probably Buff Orps.