Photo shows herons in Jicui Town of Fangshang county, north China's Shanxi Province, April 14, 2020. (Photos: Xinhua)

Photo shows a heron in Jicui Town of Fangshang county, north China's Shanxi Province, April 14, 2020.

Photo shows herons in Jicui Town of Fangshang county, north China's Shanxi Province, April 14, 2020.

Photo shows a heron in Jicui Town of Fangshang county, north China's Shanxi Province, April 14, 2020.

Photo shows herons in Jicui Town of Fangshang county, north China's Shanxi Province, April 15, 2020.

Photo shows herons in Jicui Town of Fangshang county, north China's Shanxi Province, April 14, 2020.