As everyone has stated, a parrot of this age having a night fall is very rare in a healthy parrot.
Well stated WilliamKenyen.
General note: Senior parrots and some middle age parrots that have lost muscle mass in their claws and legs from spending years on under sized or a single size dowel falls are seen. It is important to assure that we provide natural branches of varying sizes for our parrots, targeting larger diameters for those ares that they roost.