Answer:
I am tomorrow's yesterday and yesterday's tomorrow. What am I?
Sometimes I annoy you, sometimes you can't live without me. But no matter how hard you try, you can't destroy me. What am I?
My first though water cures no thirst my next alone has soul and when he lives upon my first he then is called my whole.
I'm not a bird, but I can fly through the sky. I'm not a river, but I'm full of water. What am I?
My keepers feed me colored balls. With sticks they store on my den walls. Sometimes I store them in my pouch. Sometimes deep in my belly; ouch!
Dark, feathery, and popular in Baltimore and fantasy books.