Wind noise in roof?

Question

Anytime its any way windy there is a vibration noise  coming from roof, I have a spinning top on my chimney so that should eliminate that.  Its getting very annoying I've been up to the attic and on the roof and I can't figure out what it could be , any suggestions please  , thanks 

Update:

The noise was there before I put the spinning top on

Answer 1

On the contrary, that "spinning top" may be the source of the vibration.  I doubt they are built with the finest of German engineered ball bearings.

Answer 2

Down by the eaves there are ventilation grills to keep air circulating in the loft there is maybe somethinglike felt or something in a grill, wait till its windy and go in the loft  and listen to see if you can locate the area