How do I get my bird to keep it silent?

What type of bird do you have? For even the small of the common pet birds (love birds, parakeets, atiels, parrotlets) the average life expectancy is between 10 and 25 years. If you have a atiel than he/she is probably having night frights (very common in tiels). Try leaving a night light on in the room with the bird's cage.