Thank you for your response.
I just realized there was another question I should have answered for you...
Hens will hatch any egg they can when broody, they don't care about the parentage and if they hatch it, or think they hatched it, since you can often sneak day old foster chicks under them...then they will raise it as their own until it is time for them to be on their own (4 weeks to 8 weeks old, usually)
Some folks have hens hatch and raise ducks or turkey, and I've read of instances where wildlife biologists have used hens to hatch out rare bird eggs such as eagles...