Late hatchers, when to help?

[AllCoop'dUp]

Well...much to my surprise, I got 4 more baby ducklings on Tuesday. Good thing I didn't give up on those eggs and throw them out. Is that normal? I would say they were 4 days late, but I read somewhere that you don't count the first 24 hrs.

 

[pascopol]

Next time check your temperature/thermometer in your bator . Late hatches are caused by too low temperature.

Also ducks are slower to hatch than chickens. They kind of take breaks or fall to sleep while hatching.