The feeding was the first thing that popped into my mind ... along with a number of other things.
They are different in so many ways. (sorry) While I can see a mom hatching an (small) egg or two that is about as far as it can go... The runt
pigeon had a egg about the size of small banty. (That was about it)
But it would not be able to raise it, even if it did hatch it.
Best of luck...
Homesteading ... it's a way of life.
"I am the momma-bear your daddy warned you about" ...