What's wrong with the fluffy of golden bird feathers

Golden bird feathers are usually caused by cold.It must be kept warm in winter. The feed is not much different from the time. It is better to use grain, mule, rapeseed and other mixing as the feed. It is also necessary to add apples and greens to ensure the balance of nutrition.Drinking water must pay attention to water temperature, don't let it drink cold water, otherwise it is easy to diarrhea.You can take a shower once a week, but do not use warm water, otherwise it will melt the fat on the feathers.