Set a broody on the evening of April 13. Today one of the eggs is crushed, (looks like maybe she stepped on it) membrane is showing, about a quarter of the shll is off but the chick is still alive. Any hope for it? Thinking about wrapping it in a damp paper towel under a heat lamp (no incubator and I don't think there is time to get it). It would have been due to hatch Friday or Saturday. Or should I leave it where it is, under Momma?