They don't care what species they are, as long as they are bird babies of some sort, and of a species that runs around soon after hatching. It wouldn't work to hatch, say, robins, under a hen, for example. But chickens will hatch and raise chicks, poults, keets, ducks, geese, peachicks, and I'm sure they raise others just as well. I don't know how well turkeys will do with chicks or keets, I haven't tried that, and I don't know if guineas are any good at cross-species parenting. I've only personally hatched multiple species under chickens.
I wouldn't hatch non-aquatic species under ducks or geese, in case momma tried to teach them to swim. I know of somebody who had a duck mom drown a bunch of chicks that way. She was freaked out because her babies didn't swim right, and the chicks all died. Very sad.
Algopurple, rocks and leghorns can cross, it wouldn't affect whether her eggs are fertile unless the size difference prevents good contact when mating. Often they manage just fine anyway, even if we think they can't. Wait 10 days, candle the egg, and if there's no development, take it out then. There's no reason at all to remove eggs before 10 days, just because you don't know whether they're fertile or not. You don't really know whether any of them are fertile until you see development. If you don't know how to candle, or can't tell for sure, leave it in. See if it hatches. Anything that didn't hatch within 3-5 days past the due date, remove and discard then.
I wouldn't hatch non-aquatic species under ducks or geese, in case momma tried to teach them to swim. I know of somebody who had a duck mom drown a bunch of chicks that way. She was freaked out because her babies didn't swim right, and the chicks all died. Very sad.
Algopurple, rocks and leghorns can cross, it wouldn't affect whether her eggs are fertile unless the size difference prevents good contact when mating. Often they manage just fine anyway, even if we think they can't. Wait 10 days, candle the egg, and if there's no development, take it out then. There's no reason at all to remove eggs before 10 days, just because you don't know whether they're fertile or not. You don't really know whether any of them are fertile until you see development. If you don't know how to candle, or can't tell for sure, leave it in. See if it hatches. Anything that didn't hatch within 3-5 days past the due date, remove and discard then.