Ive been on BYC for years now discussing chickens and quail. My neighbor came to me with a 3 day old mallard duckling he found being chased by a cat. Ive never raised these guys, and the feed store is not open today. I set up a brooder much like my chicks, with a towel on the bottom, a chick waterer, and a heat bulb at 90 degrees like a chicks is. Since I only have layers chicken feed and the feed store is closed, what should i feed it until then? He seems healthy and happy, but hungry!