I agree, I'd treat with the Corid and see if that helps.Shaking almost like he was cold. I have him in a crate now with a heat lamp. Today it’s doughy. He wants to eat, so I feel like that’s at least one good sign. My next step is treating with corid because I have two hens this morning hunched up. Their crops are empty and they don’t want to eat. I have never had adults show signs of coccidia until now, and that’s the last thing I can think of since they’ve been dewormed. I’ve also been spraying my coop for mites/fly prevention because the flies have been awful this year. So no fly strike or mites.
If the crop is now doughy, give him a stool softener in addition to the miconazole 2x a day. See if that helps break it up.
The shaking is concerning, is he still doing that?