OK-Now my extreme ignorance shows(like it didn't already). I have never seen the yolk when they were hatching(mama always took care of it) so hopefully I can find a pic on here to let me know what it looks like(I know what yolks look like so I really sound dumb now) OK-calm down. I will go out now and try to examine more closely. ty.
the yolk is the last thing to recede
it will be absorbed by the chick into its abdomen
once that is done it can hatch and not before as it will likely die of secondary infection
candle the egg and you should see a hollow area to indicate its absorbed
if its not absorbed then the area will be dark
but as you say the egg is broken try look inside the egg from the break to see if you can see the yolk absorbed or not
you should either see a yolk
or you should see the chicks belly
if you cant see either then your view is obscured