I don't have a problem with them barking but I have heard of something called a bird house when they bark it makes a high pitch noise that they don't like and they stop barking suppose to work good never tried it personally maybe it would help
I tried it to get em to stop barking n box at one time. Dnt waste ur money it didnt affect mine but stopn and pulln em out and giving a good ol fashion butt whoopn does!
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