According to a report in China Daily News (www.china.org.cn):
The seismological bureau in Nanjing, Jiangsu province has officially established seven farms full of animals as seismic stations, reported Modern Express on Thursday.
One of the seismic stations is an ecological garden in Yuhuatai district, containing 200 black boars, 2,000 chickens, and a 2 square kilometers of fish pond. Cameras are installed around the animals’ living environment to observe their behavior.
Their feeders report to the seismological bureau twice a day on any abnormal behavior that professionals will analyze for whether a possible earthquake is imminent.
It is believed animals exhibit unusual behavior before an earthquake.
See this clip from DNews:
For more stories on the idea that observing animal behaviour could be used to predict earthquakes see the links below: