Hi there .. I’m new to chicks and came home from the county fair to find one of my 16 week old production red pullets isolating in the coop and lethargic. I took her out and placed her in the yard with the other cockerels and pullets and she played for a while and then isolated again. It was warm today but not excessively. Could be suffering from the heat? Is it that she’s getting ready to lay? I’m not sure if I should bring her in.