Turned out all my old hens,....eggs were getting scarce and the old gals just aren't up to the task anymore. Anyways,.....I got a new brood of pullets about two weeks ago....6 golden comets,..and 6 rir. and my daughter made me buy a very goofy duck that I dunno what to do with,..but he's cute,..so we're keepin him around the farm I guess. I've had him/her? in the cage with the chicks,.....he's three times thier size,....but the duck acts like a mother,..and lets all the chicks cuddle up under. Is there any harm in this? Everyone seems healthy and happy......is there anything about a duck that i need to know that could harm the chicks?