I just purchased 4 chicks from the Urban Chicken store in Raleigh, NC today. 2 barred rocks, 1 black sex link, and 1 brown leghorn. 3 are doing great. All were eating and drinking (nipple waterer) when we got home. They are running around, no one has pasty butt, and the warmest part of the brooder is 90 degrees. They are 6 days old. For the past hour the black sex link has been chirping the distress chirp nearly constantly. Every time I go over to the brooder she stops. The black sex link and brown leghorn were both trying to jump out of the brooder by jumping from the top of the waterer. I put a baby gate on the top of the brooder so they can fall out. The two Barred Rocks look like they just want to take a nap after lots of eating and drinking and the other two seem to be walking around nervously and keep jumping up on the waterer. What should I do? What could be wrong? I have 7 others (in a different brooder) who never did this. I bought them from a private owner at 6 days of age also. As I am typing this I hear 2 chicks chirping the distress chirp instead of one (I went and checked and the other one is the Brown Leghorn). I searched the forums and couldn't find another post that seemed to be the same situation. Thank you for your help.