I noticed one of my birds laying down all day. She was foraging, eating, preening and would get up when she needed to. She laid an egg yesterday also and went into the coop with everyone else. I have an automatic door so she came out with everyone this morning and has just been laying around. She will eat from my hand and gets up every now and again to find a new place to lay down. She is a rescued bullied chicken that took about 4 months to integrate into the flock and was doing well until yesterday. No discharge, no visible injury, no real evidence of mites or lice. This is new behavior for her. I just put save a chick in the water hoping it’s just from the heat. Any suggestions