We have about 15 eastern wild turkey eggs in incubator (first time hatchers). two began to hatch yesterday around 3:00 pm, about 10 PM that evening they made very little progress. We were told we could 'help them out a bit' by cracking enough of the egg to allow them to poke out their heads. Early this AM one had died with maybe a little more progress than when we left them that evening. The other may be dead by the time I return home from work. How long will it take for them to come out on their own? Should we help or not? Why would they not make progress? the incubator has water and is about 98 degrees. Pointers? Should we just let them be, let them die if they can't get out of their eggs?