Arielle you should have used my logic against me and told me to prove that it did not work . . .
I did use to use it in the water. I bought into it. Heck I used it for a couple years. Over time I started questioning why, and ran a set of pens one way and another. I could see that there was no measurable difference between the pens, or the bird's health. That is how I became skeptical.
The conclusion that I come to is that you can't add enough to change the PH enough without the birds not wanting to drink it. Also that the concentration was not enough to aid me with the condition of the waterer itself.
I will never dispute that ACV is an effective antiseptic. I will never dispute that it is useful for a number of things.
My position is still that I cannot add enough to the bird's water to benefit them, and them still drink it. That is the point where I would have to see evidence. I do not like spending time and money on things that does no practical good. No one has provided me that evidence. I would love to see it. I like to be corrected. Better than being wrong.
On the other hand I cannot prove that it is not helpful in their water. I certainly would not suggest someone stopping a practice that they felt benefited their birds. I do suspect however, that we do a lot of things that make us feel better about what we do, rather than accomplish anything measurable.
Goodness, and whoever suggested Google something . . . . We are probably the most informed generation ever and at the same time the most mislead generation ever. Largely thanks to Google. LOL.