I've had my 8 RIR chicks are about 2 weeks old. I'm using the below type feeder that holds 1 quart: These chicks are going through a quart of feed in about 2 days - until I realized that most of it is ending up on the floor of the brooder. They are just sticking their little heads in the holes & shaking away, sending so much feed flying! I tried covering half of each opening with tape, but so much wood shavings got in the holes that they could get to the feed. What's the best type of feeder for young chicks that will not let them fling it all around?