Perform any actions on your site to summon the malevolent spirit.

A smuggler may appear while you're feeding animals on your site.
Hyenas may appear while you're feeding large animals.
Vultures may appear while you're taking care of your poultry.
Common rollers may appear while you're taking care of your fruit trees in the Savanna.
Termites may appear while you're harvesting beds of crops in the Savanna.