We just got 4 chicks between to 4-8 weeks , a rhode island red, a speckled Sussex, australorp, and salmon favarolle. The Sussex who is the youngest is the one that seems sleepy and at times is off by hersel while the other hang together. The Sussex is Eating,drinking and pooping but I wasn't too sure if we should be worried. We only had the chicks for a week from a reputable local breeder. Appreciate some feedback .