What is the old opening mouth?

因为 often opens his mouth because of the hot weather.In the summer, pay attention to the summer avoidance, and do not let the birds be exposed to the sun for a long time.At the same time, we must pay attention to ventilation. Good air circulation can also cool down.In addition, because high temperatures will accelerate the rotten food, and it will also cause drinking water to deteriorate. Therefore, it must be replaced in time every day.