According to the cantonal police in Aargau, this is not an isolated incident."
"Only recently in Sins, Aargau, an unknown person deliberately injured a cat with a bow. The animal did not survive the attack.
WTF, garden hose not enough? More seriously, ultrasound repeller near the bird feed should be enough.
PS. What other debauchery is going on on Sins?
Doubt this has anything to do with scaring unwelcome cats away, unfortunately there's some very sick people around.