There are only two ceiling fans in the house,one of which is in my bird's room. We live on the East coast of Canada, so the fans are only used about 3 days out of the year
It's over 100F here, and where the bird sleeps it's even hotter so I turn it on when she's in the cage and asleep. Even though she's clipped, I wouldn't risk the fans being on when she's awake.
I'm actually more scared of the crazy cats that like to hang around our yard and eat birds. Once I turned my head for seriously, a split second, and the cat came out of nowhere and was ready to pounce on the cage.