Thanks for the advice all. The last hatch wasn't this traumatic!
The started one had sort of pipped. I used some tweezers to open the hole just a smidge more. There is a little beak breathing, but there is no more cheeping. Should that worry me?
I tried to candle the other three eggs. Two...
I don't know that it has actually pipped. There was a pip like crack in the shell, but the inner membrane hasn't been broken. I can still hear peeping inside and it kinda felt/sounded like pecking was happening inside.
Do you still think I should help out?
So egg number four is cheeping in the shell. This morning there was the start of a pip, but only the shell is cracked and not the membrane. It has been that way since this morning. Today is day 22. The egg is under a broody silkie (not in an incubator so don't fuss at me for opening the...