What happened to the Xuanfeng parrot dilute

Xuanfeng Parrot may be a stress response, or it may be something that is not clean.Under normal circumstances, changing the living environment to the bird can easily cause it to have a stress reaction, so it will be thinner when you buy it, but as long as you adapt for a period of time.If you eat something that is not clean, pay attention to diet hygiene, and the feed feed must be fresh.