Chick pipped outside of the air cell

[Moon Daizy]

How long has it been externally pipped? If you haven't heard any noise I would carefully pull off a bit of the shell on the pip and punch a tiny hole in the membrane.

It has been 12 hours now. I carefully removed the egg this morning, candled it. The air cell is bigger / has moved from when I drew it on day 17, and is over the site of the hole in the shell! And I heard cheeping and felt it moving! So precious! I am not worrying now I know it has successfully internally pipped (It can't make noise without air passing through its syrinx). Another egg has pipped overnight too, right on the 'edge' of the pencil mark, so I am sure he/she is fine too. So exciting! Will keep a close eye on them today. Thanks for your encouragement / reply