Answer:
Tall in the morning, short at noon, gone at night. But I'll be back soon.
Known to accessorize with feathers, trumpets, and harps.
A seed am I, three letters make my name. Take away two and I still sound the same.
Add a T and I shoot through the sky. Then add an S and I multiply. What word is it?
I fly through the air on small feathered wings, seeking out life and destroying all things.
What is always coming but never arrives?