Hatching keet trouble

[becky_animals]

My guinea hen has been setting on eggs and they started hatching (not that she lets me near, but...) We had dry weather in the 90's in week 3 but got 5" of rain and 70-80 degrees in the last week of incubation. Don't know if that matters, though.
But - so far I've found 4 eggs kicked out of the nest, one about 100 feet away, the rest close by. The eggs were all partially hatched, less than half the shell off, and the keets were dead.
Any clue why? Would the weather have messed stuff up? Would mama kill them?

Thanks!

 

[sourland]

Is there a possibility that other birds are interfering with the setting hen?

 

[becky_animals]

Is there a possibility that other birds are interfering with the setting hen?

Yes. We have an older female who sits on the nest every time momma gets up, but relinquishes it when momma comes back. And the crazy male...
I did wonder if one of the adults had pecked at the 3 that were still in the shell as some of the shell was missing but the keet inside was still all curled up and didn't look like it'd moved to peck the shell. The 4th dead keet was completely out of its shell; I didn't see it as my husband cleaned it up while I was mowing. But he said the keet out of its shell looked like it had yolk smeared on it.