What's wrong with the fluffy of black feathers

Black feathers fluffy indicates that it is cold.In winter, we must keep warm measures. The cage should be placed indoors warm, and at the same time, we must pay attention to windproof.The feeding is mainly used for egg rice and eggs. Prepare one can every day and eat it within two hours.Pay attention to the temperature when drinking water, and do not feed it with too cold water.In addition, when the temperature is appropriate, you need to take a bath. It is enough to wash it once a week in winter.