Call duck hatch

[ZooZoo]

I am just 4 days away until my call egg is due to hatch. I started out with three, but am left with only one

.(i think one might have been infertile). I just candelled the egg and the embyro looks live and well, and also very big. I was wondering if anyone had any tips for hatching call ducks. I thought i have read that they hatch sooner then most ducks? I have the egg in an r-com, do you think i should add a sponge or anything to add humidity or should i just let the r-com do its work? Any info would be appreciated.
thanks

 

[Keisha]

I have a call duck egg in with my chicken eggs, since my ducks layed a single one the day i was putting my other eggs in. So I would definitly be curious to read the advice that you receive. Ive heard that call duck eggs are harder to hatch though..
The r-com is the one thats digital and is programmed for specific species right? i would just think as long as it says the humidity is right then you could just let it do its job.. But I dont have one myself so I wouldnt know..
Good Luck!