The week-old RIR died during the night.
Most of the others burst out of the coop and are acting very normal. The month old Wyandotte (my last one) is not doing great. SLIGHTLY better than yesterday. She managed to go in out of the coop by herself. I'm not convinced she will drink much so I brought her in today into a box under a light, dipped her beak in medicated water a few times and will keep that up.
She's standing in one spot, wings drooping just a little. But she's also looking around, making little movements with her beak from time to time, and seems interested and semi-normal from the neck up. She feels just slightly chilled, but that might be my imagination.
I would really hate to lose this one. I've wished for red-laced blue wyandottes for years, and this was my first chance to have any. But 2 out of 3 have died and the third is the only one looking really sick. Im not overly optimistic. But I'll do all I can.
If I need to bring in more from outside in future, I will DEFINITELY look for hatching eggs instead of grafting chicks. I had no idea they could be so much weaker. I've normally kept flocks of about 100 for years in two states, always hatching my own eggs under broodies, and never dealt with anything like this. It's devastating to the birds.