An everyday black cat becomes symbolic once a year on halloween. We are told that having a black cat run by you on haloween symbolize bad luck. Without symbolism this cat would be nothing but a cat. This being said symolism affects our everyday life.
A peculiar bird is the pelican. His beak will hold more than his belly can. He'll dive with a swish and come up with a fish. I don't see how in the hell he can!