My broody let her eggs get cold last night just as they were starting to hatch. I took the eggs inside and put them into a makeshift incubator and one chick has hatched out. The others have no sign of life. This one little chick is real trooper. It's lifting it's head now and peeping like crazy. I have the temperature at 37C and a damp facecloth in there with it. Should I keep the humidity high or can let that drop now? Will one chick be too lonesome to survive? Any advise would be helpful.