I just got 6 chicks that are a week to week and a half. One of my D'uccle chicks, oldest of my chicks, is more lethargic than the others and does not seem to peep. She does eat and drink. Her breathing seems a little heavy to me. Not gasping for air or anything. This morning 5 of the chicks were up running all around eating and drinking. The one was just wanting to stay asleep in her blanket. When I pick her up she just snuggles my fingers and goes to sleep. Should I be worried about Her? Is there anything I can Do? I know baby chicks sleep a lot, but she is just not as active as the others. I will get more pictures of her this evening when I get home. She is the brown one with the most wing feathers closest to the edge of the cage in the second picture and the brown one on top of the others in the first picture.