Walking on shells

Before I was born my mom was cleaning out my older sisters bird cage. The bird flew out of the cage and began dive bombing my moms head. My mom has hated birds ever since then.

I love that story.

I like birds, but there is one thing I never understood about them.
Why they walk

Have you ever chased a bird and had it try to RUN away from you? It's like for a few seconds they forget that they have wings. Eventually though, they always fly away.