Answer:
I am the third from a sparkle bright, I thrive throughout the day and night. Deep in the path of a cows white drink. I've had thousands of millions of years to think. But one of my creatures is killing me. And so the question I ask to thee, is
It is the assumed nocturnal symbol of Mr. Wayne. What is it?
To unravel me you need a simple key, no key that was made by locksmith's hand. But a key that only I will understand.
I have many feathers to help me fly. I have a body and head, but I'm not alive. It is your strength which determines how far I go. You can hold me in your hand, but I'm never thrown.
The ones who see it may go blind, Contracting the fool's madness. You have to dig to find it, Crush big stones or mine it. Wash dirt clumps in a pan and wait for it to settle, A shiny, precious metal.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.