What is the difference between a external peep and an internal peep? I have one duckling hatching and don’t now what it is!! I have 6 duck eggs in my incubator right now! I had 2 broody ducks on them but something attacked their nest so they left their nests and they lost 8 eggs together so the rest I put in my incubator! Anyway one of my ducks sat earlier then the other, and I have one egg starting to hatch!! Thank you!