When will the blue song 时候 change the hair?

Lan Ge 常 usually changes hair in July.When this bird changing hair, you must pay attention to windproof to prevent it from being blown by the cold wind, otherwise you may catch a cold.In addition, do not replace the feed at will during the period of hair change, especially when the hair removal will affect the birds at this time. Only when it grows new feathers, you can add some nutritious foods to promote its development.