I tried searching for this but I think it's too broad in such a large section of the forum to find the answer.... that or I'm doing something wrong!
At what day of incubation should I open the eggs if everyone else has hatched? Is it ever possible that there is a live chick in a late egg who wouldn't live unless it was opened manually?
Thanks!

At what day of incubation should I open the eggs if everyone else has hatched? Is it ever possible that there is a live chick in a late egg who wouldn't live unless it was opened manually?
Thanks!