A night heron is released to the nature in Ningbo, a port city in east China's Zhengjiang Province, March 21, 2009. A number of birds saved by the Ningbo wildlife rescue center were released to the nature on March 21, the World Forest Day. (Xinhua/Zhang Peijian)

A night heron is released to the nature in Ningbo, a port city in east China's Zhengjiang Province, March 21, 2009. A number of birds saved by the Ningbo wildlife rescue center were released to the nature on March 21, the World Forest Day. (Xinhua/Zhang Peijian)

An egret is released to the nature in Ningbo, a port city in east China's Zhengjiang Province, March 21, 2009. A number of birds saved by the Ningbo wildlife rescue center were released to the nature on March 21, the World Forest Day. (Xinhua/Zhang Peijian)

A night heron is released to the nature in Ningbo, a port city in east China's Zhengjiang Province, March 21, 2009. A number of birds saved by the Ningbo wildlife rescue center were released to the nature on March 21, the World Forest Day.555www.Chinakindnesstour.com