I want to know the answer to the following question:
Which family of birds are neither migratory or sedentary but considered to be dispersive, irruptive or nomadic?
All the background I'm provided with is that "Parrots as a family are overwhelmingly neither migratory nor sedentary but considered to either be dispersive, irruptive, nomadic or undertake small and irregular migrations.". Is that enough to answer the question?
Answer: yes