Is this normal???

[Foul Mouth Farm]

I have a blue Swedish duck egg about to hatch and its air cell is looking a bit off. On top of that it has a black spot on the bottom of the egg!
I candles a few hours ago and it was moving. But no internal pip yet. Do I need to do anything?
Humidity is at 60 and temp at 97 thank you

 

[Debbie292d]

Temp should be 99.5F. How many days have they incubated as that doesn't look ready.

If they've been at 97F the entire 28 days, it's probably going to be another few days to make up the difference. Humidity could go a little higher if they are in lockdown.

Ducklings usually nearly fill the egg when they're ready to hatch.

 

[Dreamers Nook]

Definitely need higher temperature as said, and 55ish humidity until lock down, then 65 to 70. As said above, ducklings fill eggs completely by lock down. It could be longer because of cooler temps, but what I can see, the egg is no longer alive. Looks about 2 weeks in development. I could be wrong, as pictures aren't very clear.