From 1999 to 2002, a bird investigation was conducted in the distribution area of the Crested Ibis, Yangxian, Shaanxi Province. Totally 201 species were recorded, belonging to 16 orders, 48 families and 116 genus.

• 摘要1999年1月至2002年1月，在陕西省洋县进行朱鹮研究过程中，对当地鸟类进行了长期、系统的观察，记录到鸟类16目48科116属，共201种。