It is safe to help them hatch at this point, but you have to do it carefully. They will not make it without it, because of the shrink wrapping. We have waited the needed time and can say we did not rush it. The waiting game is the hardest part.
You are right you have to wage the pros and cons when other eggs are in the box that have piped. Sometime you have to let go of one for better of the rest. In nature the mother duck will also help with hatching, so it is not completely against nature to help.
You are right you have to wage the pros and cons when other eggs are in the box that have piped. Sometime you have to let go of one for better of the rest. In nature the mother duck will also help with hatching, so it is not completely against nature to help.