@DuckyDonna Good trick to get Niacin or B-Vitamins into your ducklings without the rest of the flock stealing everything: Grind up some Vitamin B complex pills and mix the powder with cat-kibbles. The kibbles are always a little oily, so the powder will stick to them. Then take two bowls with cat food: Hand out the stuff without the vitamins to the grown-ups and the vitamin-covered stuff to the ducklings. Worked purrfect for me. The little ones have started to get better balance and stronger legs. Also i gave them some Calcium Glucconate for stronger bones.