If you sneak the chick under the hen at night, stay there for a while to make sure the hen does not reject it. I tried it once but my hen did not accept the chick. It was the saddest thing to watch that chick try to get back looking for safety and the mother didn't take it and tried to hurt it...
I have hatched a chick in my bra successfully when the power went out on the day the chick started to hatch. I have killed a chick with a heat pad. I would not recommend the heat pad because you can't monitor the temperature. I would rather make an incubator out of a cardboard box quickly and...