really???? really, come on...?? really????? are you pulling our feathers?? well we MUST MUST have pictures of THAT.... if they can cover it,,, why not??? they incubate at the same temp,, i just dont think they could roll it,, bird eggs need to be turned.. that is one of the 2 problems i see...
Ok no way there is no way the could even have enough body heat to warm the whole egg, and turning would be another thing.
They can but i think you would have to duct tape the hens together and then turn the eggs by hand I dont think it would work