The ten sisters are always opening their mouths, what's going on

Ten sisters often open their mouths and explain that it is too hot.Generally, you need to avoid the summer in the summer. Do not put the bird cage under the sun, but you must also see the light properly and maintain a good ventilation at the same time.You can feed it every day to eat rice, millet, dumplings, etc., but you need to replace the feed not finished, because high temperature will accelerate the deterioration of food. Once you eat it, the birds are easy to get sick.You should also pay attention to drinking water, and you must keep enough water.