one thing to remember once a wound is cleaned, and antibiotic applied without pain killer or use some hibiclens or betadine, if you don't have stypix you can use corn starch or flour to stop the bleeding which usually everyone has one or the other or even both.
You need to keep the baby warmed, Do you have a brooder you could set up?
Hydrated and you can feed i believe chick starter that is not medicated.
Tagging some experts here to help out in case I missed anything.
@Miss Lydia
@WVduckchick
@casportpony