Hmmm.....actually I learned about using Copper Sulfate for Canker from a Pigeon forum long ago. LOL Not all birds can be saved from what ails them. If they are too far gone, nothing in the world will bring them back. If that were the case, we could save them all!So I was hoping that "Acidified Copper Sulfate" would be as effective as everyone says it is, but I recently had a pigeon with canker that I used it on and it did not make a difference.Perhaps this is just a really stubborn case?
-Kathy
Sorry about your bird Kathy.