the only thing that i can think of is that they move before they hatch, which is usually a sign that they are about to hatch.
No, they occasionally leave it to get water and/or food
In eggs
They don't, they just sit on their eggs until they hatch. Ducks will still try to care for the eggs that do not hatch, eventually they will give up.
the ducks hatch in the spring normaly in the 2nd week
yes and they do
the fact about duck eggs are that it take about 28 day to hatch.
Wild ducks certainly do and many farms have ducks that set eggs each spring but there are hatcheries that incubate duck eggs just as most chickens are produced in a hatchery.
21 to 30 days
The fertilized egg develops after it's laid. The developing embryo grows inside the egg until it's grown enough to hatch out. The egg contains a tiny air-sac to allow the baby duck to take a breath while it fights to break the shell. The babies are alive inside the egg.
Yes. She believes all the eggs are fertile. Ducks have been known to sit on objects similar to eggs such as golf balls.
Wanting to sit on and hatch eggs.
When a female lays an egg, after 28 days, (35 for Muscovies) it will hatch into a duckling, if the mother takes care of it all 28 (or 35) days. However, the Pekin duck will most likely not sit on the eggs, so Pekin eggs require man-made incubation.