My son has 2 ducklings about 2 1/2 weeks old. Well, when I got home today the smaller black one (might be cayuga) is REALLY WEAK! I have the two ducks in a box with 6 chicks from the feed store until I can find another box. The Big yellow duckling is thriving and doing great. He is nice and strong and growing every day! This duckling looks as if it hasn't even grown much since we brought him home! I don't know if its the stress of being in with chicks, or if he just isn't getting his feel of feed and water or what!? I am feeding the ducklings chick starter. Is that the right type of food for ducks? I put him in the brooder that I have set up for my hatching eggs, but he can't stay there because I am already moving chicks into it that have hatched! What am I to do? I am afraid I might lose him and my son will be SO heartbroken! Any suggestions?