3 ms·

If loud noises will start _before_ machines turn on vacuum, at least few minutes, then, maybe, it could help.

• kzrdude 7y ago
  You'd think that the noise of the neighboring tree being vacuumed would be enough for the birds close by to flee, but apparently it's not? So something more deliberate is needed?
  • EugeneOZ 7y ago
    Yes, agree.