Means that your bird isn't helping it grow. I have a few of them.
hatching
Fright, short trip for food, nest of eggs not hatching and the bird will give up.
Eggs hatching
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I see that the eggs are hatching now. I am hatching an idea about that.
its not hatching
The eggs break and the babies come out. This is called hatching.
Eggs Hatching - 1899 was released on: USA: September 1899
A towhee bird normally takes about 12 to 13 days to hatch her eggs. The nestling period for these birds is between 10 to 12 days.
put them in a brooder
When they excrete the eggs from their body it's called "laying" - when the baby bird is ready to come out of the shell, it's called "hatching"
When hatching eggs, there are two methods of hatching - 1) You incubate them in a incubator. 2) You let the mother set them.