I thought I had done my research, but after visiting BYC for the first time in a long time, I'm hearing some ideas I hadn't considered. Am I totally blowing it if I don't give the ducklings (day old, arrived a few hours ago!) some Brewer's Yeast? How important is it? I have the regular old yeast packets for baking bread, but I know it's not the same. Would the Brewer's Yeast be in the same section of the grocery store? Or is it sold at the health food store? And how about mixing yogurt into the food. I came across that idea somewhere in the last ten minutes, but I couldn't tell if they meant it to be for ducklings. Any thoughts?