mouse
Mice
Mice, birds, rats, etc.
Mice.
Mice and other small rodents because that is what cats prey on.
A mouse is an animal that is likely scared to death of cats due to the natural hunting instincts of cats towards small rodents like mice.
Mice! Birds! Bugs!
Rats?
Mice
Mice!
a mouse
birds, zebras, capybaras, humans - just to name a few
Mice are probably scared to death of cats, because cats hunt mice. Also, birds are most usually afraid of cats because cats also hunt birds.