Answer:
My first keeps time, my second spends time, my whole tells time.
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.
Only two backbones and thousands of ribs.
It's in your hand though you can not feel it. Only you and time can reveal it.
Lives without a body, hears without ears, speaks without a mouth, to which the air alone gives birth. What is it?
When is it bad luck to see a black cat?