![Migratory birds in Qinghai Lake, the largest saltwater lake in China’s inland, in late January 2019. The lake plays an important role in the protection of biodiversity globally. It is a key breeding habitat and stopover for many waterfowls on the migratory route. (Photo: China News Service/Ma Yirui)](http://www.ecns.cn/hd/2019/01/31/234245e1f55e42899cd731651f958b36.jpg)
Migratory birds in Qinghai Lake, the largest saltwater lake in China’s inland, in late January 2019. The lake plays an important role in the protection of biodiversity globally. It is a key breeding habitat and stopover for many waterfowls on the migratory route. (Photo: China News Service/Ma Yirui)
![Migratory birds in Qinghai Lake, the largest saltwater lake in China’s inland, in late January 2019. The lake plays an important role in the protection of biodiversity globally. It is a key breeding habitat and stopover for many waterfowls on the migratory route. (Photo: China News Service/Ma Yirui)](http://www.ecns.cn/hd/2019/01/31/69e6429c87ee4d5686b4edad626365dc.jpg)
Migratory birds in Qinghai Lake, the largest saltwater lake in China’s inland, in late January 2019. The lake plays an important role in the protection of biodiversity globally. It is a key breeding habitat and stopover for many waterfowls on the migratory route. (Photo: China News Service/Ma Yirui)
![Migratory birds in Qinghai Lake, the largest saltwater lake in China’s inland, in late January 2019. The lake plays an important role in the protection of biodiversity globally. It is a key breeding habitat and stopover for many waterfowls on the migratory route. (Photo: China News Service/Ma Yirui)](http://www.ecns.cn/hd/2019/01/31/b8cc97703d70402eaeff44fc6b85796d.jpg)
Migratory birds in Qinghai Lake, the largest saltwater lake in China’s inland, in late January 2019. The lake plays an important role in the protection of biodiversity globally. It is a key breeding habitat and stopover for many waterfowls on the migratory route. (Photo: China News Service/Ma Yirui)
![Migratory birds in Qinghai Lake, the largest saltwater lake in China’s inland, in late January 2019. The lake plays an important role in the protection of biodiversity globally. It is a key breeding habitat and stopover for many waterfowls on the migratory route. (Photo: China News Service/Ma Yirui)](http://www.ecns.cn/hd/2019/01/31/e01b1e1f7a7b47f999084c4991ab6462.jpg)
Migratory birds in Qinghai Lake, the largest saltwater lake in China’s inland, in late January 2019. The lake plays an important role in the protection of biodiversity globally. It is a key breeding habitat and stopover for many waterfowls on the migratory route. (Photo: China News Service/Ma Yirui)
![Migratory birds in Qinghai Lake, the largest saltwater lake in China’s inland, in late January 2019. The lake plays an important role in the protection of biodiversity globally. It is a key breeding habitat and stopover for many waterfowls on the migratory route. (Photo: China News Service/Ma Yirui)](http://www.ecns.cn/hd/2019/01/31/a92f306a3b97431596c596c04598415a.jpg)
Migratory birds in Qinghai Lake, the largest saltwater lake in China’s inland, in late January 2019. The lake plays an important role in the protection of biodiversity globally. It is a key breeding habitat and stopover for many waterfowls on the migratory route. (Photo: China News Service/Ma Yirui)