Creatures of Halloween

Ever wonder why certain animals were associated with Halloween?
The owl is a popular Halloween image. In Medieval Europe, owls were thought to be witches, and to hear an owl's call meant someone was about to die.
Spiders: If you see a spider on this night, it could be the spirit of a dead loved one who is watching you.
Black cats were once believed to be protectors of their master's dark powers.

Bats are associated with Halloween because of the ancient Samhain ritual of making a bonfire-- this was thought to drive away insects but attract bats.