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Ah :)) try barking back :))

I did. It only annoyed them more. 😂
Then I put some sounds on YouTube, like Bears, Jaguars, Tigers, Elephants, even Ducks and Chickens... but nothing shuts them up.

:)))))ok..ok

But .... you need this one -
" A dog whistle (also known as silent whistle or Galton's whistle) is a type of whistle that emits sound in the ultrasonic range, which most humans cannot hear but some other animals can, including dogs and domestic cats, and is used in their training. "

Yep, I tried that, too.

:)))