1 Hatched, Pipped, Zipped & Fluffed (help please)

I have a Brinsea Maxi ii Advance & this is my first time using it. One duck has hatched & is all fluffed up. It is day 28. He/she appears to be about 24 hours ahead of the rest of the eggs (the others have only just now externally pipped). Is it okay to leave him/her in the incubator for another 24-48 hours while the others finish hatching? I don't want to open the lid but does he/she need to come out or can he/she stay in there at least until all the eggs have all zipped? Is it too hot in there for one who is ready for the brooder? Does he/she need a drink? How long can he/she safely stay in there? He/she seems ready to come out now but I don't want to open the lid.?!?!?!

 

What if the other eggs have not zipped by tomorrow at this time (24 hours from now), do I need to risk opening the lid to take him/her out even then? The other ducks have externally pipped but seem to be very slow. I am worried about the dreaded "shrink wrap". :/

 

Is it normal for 1 to hatch 24 hours before the rest of the eggs? It seems as though one area of my incubator is a hair warmer than the rest of it. Is this normal?

 

Thank you so much for your quick response & helpful info. It has eased my mind. I can go to sleep for the night now! Cheers & thanks again!

 

It has been 18 hours since he/she hatched & another duck has hatched now. The first one keeps pecking the younger one. I feel like I need to take the older one out but I don't know?!?!? He/she seems bored/antsy.