The collection point is being vandalized by crows. What should I do now.

To prevent litter from being scattered by crows, cats, etc., we ask that you take measures such as putting up nets at collection points.
Crow prevention nets are distributed free of charge at the Life Environment Division, so please come to the counter if you need one. (Free distribution is only available for the first time and only to those who live in detached houses.)

Related link: Prevent littering!