
Flocks of migratory birds gather on a lake as the temperature gradually rises in Haibei Tibetan Autonomous Prefecture, northwest China's Qinghai Province, March 16, 2025. (Photo/China News Service)

Flocks of migratory birds gather on a lake as the temperature gradually rises in Haibei Tibetan Autonomous Prefecture, northwest China's Qinghai Province, March 16, 2025. (Photo/China News Service)

Flocks of migratory birds gather on a lake as the temperature gradually rises in Haibei Tibetan Autonomous Prefecture, northwest China's Qinghai Province, March 16, 2025. (Photo/China News Service)

Flocks of migratory birds gather on a lake as the temperature gradually rises in Haibei Tibetan Autonomous Prefecture, northwest China's Qinghai Province, March 16, 2025. (Photo/China News Service)

Flocks of migratory birds gather on a lake as the temperature gradually rises in Haibei Tibetan Autonomous Prefecture, northwest China's Qinghai Province, March 16, 2025. (Photo/China News Service)