I have a pair of ducks and 16 chickens. I am not sure what color duck eggs are. I just found 25 eggs hidden in one place in the barn. I put them under my broody cause her eggs were duds. she sat for 28 days and nothing. I put this bunch under her and started counting... again. If any are duck eggs can she hatch them? also, someone told me that you shouldn't touch the eggs with bare hands...is that true??? we are very new at the egg hatching things. thanks...one more question...what type of light should we use to candle???