What's wrong with Hibari always open mouth

Hibari often opens his mouth to show that it is too hot.Do not hang it in the sun in summer, so as not to cause heat stroke death.Pay attention to ventilation, air circulation can not only cool down, but also prevent hypoxia.You can take a shower once a day, put the water tub in the bird cage, and take it out after washing.In addition, diet and drinking water should be replaced regularly. Once mistakes are deteriorated, it will be unfavorable to the health of the birds.