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Separate the ones who have it from the ones who don't to make sure they don't get it too.
Edited by Hens rule - 11/9/15 at 3:15pm
- Flock Mistress
Check inside their mouths. More growths in there? I suspect you are looking at canker. Treatment for canker is metronidazole 250mg; one tablet a day for 5 days. It can be purchased online as "Fishzole." Be aware that if this is canker then all your birds are likely carriers as long as they share water. You will need to start treating the flock with copper sulfate a couple days a month to ward it off.
I think you are going to have to amend the dosage because they are so small.
Edited by CMV - 11/9/15 at 4:28pm