A drone photo taken on June 27, 2026 shows fledglings perching on a tree at a wetland in Heyang County, northwest China's Shaanxi Province. Midsummer is also a peak season for breeding among feathered inhabitants in the wetland. (Photo by Zhao Xiaogang/Xinhua)

A drone photo taken on June 27, 2026 shows fledglings perching on a tree at a wetland in Heyang County, northwest China's Shaanxi Province. Midsummer is also a peak season for breeding among feathered inhabitants in the wetland. (Photo by Zhao Xiaogang/Xinhua)

A drone photo taken on June 27, 2026 shows grey herons resting in their nest at a wetland in Heyang County, northwest China's Shaanxi Province. Midsummer is also a peak season for breeding among feathered inhabitants in the wetland. (Photo by Zhao Xiaogang/Xinhua)

A drone photo taken on June 27, 2026 shows fledglings perching on a tree at a wetland in Heyang County, northwest China's Shaanxi Province. Midsummer is also a peak season for breeding among feathered inhabitants in the wetland. (Photo by Zhao Xiaogang/Xinhua)

A drone photo taken on June 27, 2026 shows fledglings perching on a tree at a wetland in Heyang County, northwest China's Shaanxi Province. Midsummer is also a peak season for breeding among feathered inhabitants in the wetland. (Photo by Zhao Xiaogang/Xinhua)