Cornish Cross Lethargic can barely stay awake

[SuburbanGoldenRooster]

Cornish Cross about 6 weeks old is acting really lethargic. Eyes closed most of the time. Putting head on the ground. Doesn't appear to be eating or drinking very much, if at all. I've separated her from the rest and am giving her a slight sugar water for the carbohydrates and corrid mixed 2tsp to 1 gal water in case this is coccidiosis. I make her drink the solution and she does take it but I have not yet seen her drink on her own. Another in the flock did die suddenly about a week ago. All the other chickens in the tractor seem fine - just usual lazy pigs that cornish cross are.

Just curious if anyone knows what this probably is and how to revive this poulet back to best health? I'll probably go out and get some Save-a-chick electrolyte tomorrow if she makes it through the night.

Thanks in advance. I love this community of chicken tenders.

 

[Wyorp Rock]

Could she have eaten something rotten or moldy?

What's her poop like?
Crop emptying?

I'd try the Corid and see if that helps.