I know when chicks are little and are squawking loudly it means they need something (e.g. might be too hot, too cold, etc); does that also apply to adult chickens? It's starting to get colder here in Iowa (dropping into the upper 30's/lower 40's at night, but it hasn't been very windy), and I've noticed my 6-month old bantams are making more noise. I can't tell if it's because they are too cold--how does one know? We are almost done with a winter coop that should give them more indoor space and be less drafty. Also, one or two of the hens recently started laying eggs, didn't know if that would also make them more chirpy. Any thoughts?