Final answer:
Reportable avian/poultry diseases to the local Medical Officer of Health include Psittacosis and Newcastle disease, and they must be reported within 48 hours of diagnosis.
Step-by-step explanation:
The two avian/poultry diseases that are reportable to the local Medical Officer of Health are Psittacosis and Newcastle disease. These diseases should be reported within 48 hours of diagnosis. Both of these diseases are highly contagious and can have severe impacts on avian and human health, making prompt reporting critical to enable measures to prevent their spread.