The number of birds is increasing due to the improving of the envi-ronment in Xining, and the birds are consid-ered as the messenger of spring.

• 由于生态环境改善和水域面积增大，在西宁市最大的人工湖宁湖湖区栖息的野鸭等飞禽逐渐增多，春日里这些飞禽为古城西宁带来无限生机。