A tractor works on a field in Yanhe village, Rugao, a county-level city in Nantong, East China's Jiangsu province, on Aug 6, with a flock of egrets surrounding it. Due to its improved natural environment, the village has seen nearly 10,000 egrets per day since the beginning of this summer. [Photo/IC]

A flock of egrets flies over a farm in Yanhe village, Rugao, Nantong, Jiangsu province, on Aug 6. [Photo/IC]

Crowds of egrets search for food on a farm in Yanhe village, Rugao on Aug 6. [Photo/IC]