It's day 15 and since day 12 of incubation a few of my rir eggs look completely dark and filled. Normally I wouldn't think much about it but in the rest of the eggs I can see movement and veining. Are these quitters? I don't want to throw out an egg and find out the chick was perfectly healthy inside. This is my first time to incubate chicks so I don't have a clue.
