![](http://www.ecns.cn/hd/2019/08/05/fb08104600c340c4b8f8ff21677915c3.jpg)
A night heron is seen at the Shanghai Zoo in east China's Shanghai, Aug. 3, 2019. (Xinhua/Zhang Jiansong)
![](http://www.ecns.cn/hd/2019/08/05/01ff40b85d7042a882e0333915d52e94.jpg)
A night heron is seen at the Shanghai Zoo in east China's Shanghai, Aug. 3, 2019. (Xinhua/Zhang Jiansong)
![](http://www.ecns.cn/hd/2019/08/05/c93aaa0171c44e0bb4cc97bd9d612360.jpg)
A night heron is seen at the Shanghai Zoo in east China's Shanghai, Aug. 3, 2019. (Xinhua/Zhang Jiansong)
![](http://www.ecns.cn/hd/2019/08/05/1709d486a2274a6b8867c293860e35c5.jpg)
A night heron is seen at the Shanghai Zoo in east China's Shanghai, Aug. 3, 2019. (Xinhua/Zhang Jiansong)
![](http://www.ecns.cn/hd/2019/08/05/92a9761f49bb4de8bb8fc14c8b04b2c3.jpg)
A night heron is seen at the Shanghai Zoo in east China's Shanghai, Aug. 3, 2019. (Xinhua/Zhang Jiansong)