Update: I'm glad I started Corid when I did; this morning I found a little bit of blood in a couple of droppings. The previously lethargic chick is acting normal again and everyone else seems okay so far too. Hopefully it stays that way and I will be sure to do the full 5-day amprolium treatment.
I have a group of sixteen 5-6 week old chicks who have been transitioning to the outdoors over the past couple of weeks, tonight is set to be their first night out in the coop since they are pretty much fully feathered (minimum temp tonight is 42ºF). I first noticed that one of my 6-week old EEs...