Answer:
Voiceless it cries, wingless flutters, toothless bites, mouthless mutters.
Gold in a leather bag, swinging on a tree, money after honey in its time. Ills of a scurvy crew cured by the sea, reason in its season but no rhyme.
They can be harbored, but few hold water. You can nurse them, but only by holding them against someone else. You can carry them, but not with your arms. You can bury them, but not in the earth.
They have not flesh, nor feathers, nor scales, nor bone. Yet they have fingers and thumbs of their own.
The more of it there is, the less you see.
When is it bad luck to see a black cat?