So happy your chicks came and unbelievable that some are alive. So about half of yours are doing poorly. Have you tried a little nutri-drench? Ive heard of many chicks arriving in this condition but with water and warmth they can perk up. I don't think food is of utmost importance initially. At least that is what I've read because these would have been my first chicks.
Once they are all perked up post some pictures maybe tomorrow or the next day, I would love to see them.
No word from the post office yet. The 3:30 truck must have come by now. How obnoxious would it be if I called again???
Call!
Then you can worry a little less.