What is going on with golden birds?

Golden birds are generally caused by unhygienic food and drinking water, or they have not cleaned the cage for a long time.If the food and drinking water are not hygienic, you need to replace it in time. Usually you need to replace the food that you haven't eaten every day, so as not to put it in the tank for a long time.If the cage is not cleaned for a long time, it is best to clean it regularly and sweep its feces and other dirt.