I clearly understand the concern regarding Ceiling Fans and the high likelihood of one's parrot flying into an operational and likewise, a stationary unit (not operating).
Having said that, we have had over forty years of fully-fighted Amazons existing in the same home as multiple Ceiling Fans. However, under a separate Post, I covered the importance of monthly home tours with one's parrot to reduce the likelihood of a beloved parrot flying into any number of dangerous 'things.' And, in that specific Post, the very serious issue of Glass windows, doors and mirrors. Now, do I recommend operating a Ceiling Fan at anything beyond its slowest setting: NO! Do I recommend operating a Ceiling Fan with a new arrival: NO! AND, I do recommend operating a Ceiling Fan with a light and small bodied Parrot: NO!
Yes, I know that there are exception to heavy and large bodied Parrots who commonly are not Ceiling Fliers - that may fly up to the ceiling for a very short period. But it is much rarer than lighter and small bodied Parrots. The primary reasons the heavy and large bodied parrots fly lower is to keep their wings from hitting the ceiling 'and' they need a great volume of air around them to compress under their wings to obtain both lift and flight. The nearer they come to the ceiling the faster they loss the needed volume. The smaller the parrot, the smaller the overall envelope needed and therefore the faster and closer they arrive at the ceiling.
And after all, there needs to be at least one Post that disagrees.