What is the old open mouth?

The yellow bird often opens his mouth because he wants to dissipate heat.Take a shower in summer, you can wash it once a day. After bathing, blow dry as soon as possible to prevent it from catching a cold.Do not put the bird cage under the sun, appropriate shading and ventilation are necessary.Because the high temperature in summer will accelerate the food of the food, the feed that is not eaten every day will be downsned. The next day it will be new. Clean the cage regularly on a regular basis to prevent bacteria from breeding.