Bird Footprints

… life… is like the shadow of a bird in flight

~ Talmud

But the bird's footprints are evidence of moments in that life. The shadow may be fleeting, the prints might be erased, so then did the bird ever exist? Can any life ever be fully forgotten, or do we all remain after we're gone in some way? Maybe that's the whole philosophy for having markers and cemeteries. And blogs.

And are bird prints called footprints? They wouldn't be pawprints. Talonprints?