I would quarantine him and use the oxine mist treatmentSo you would do treatments on everyone? What kind of treatment? Do I have to stop using eggs? We get about 20 per day. That's a lot to toss!
https://www.backyardchickens.com/t/...s-users-please-share-usage-dosage-storage-etc
None of the others are showing symptoms so I am waiting for the Necropsy report to treat or not. I suspect that she did not adjust to Woodland bugs--Her parent flock was in Arizona.