At the Yellow River Delta National Nature Reserve in Dongying, East China's Shandong province, millions of migratory birds have arrived for the winter.

In recent days, the reserve has entered the peak of the migration season. Species such as oriental white storks, red-crowned cranes, and wild geese have flocked to the wetlands, resting, feeding, and playing together — creating a spectacular scene of ecological vitality.

Each year around this time, the reserve becomes a hub of activity and great place for birdwatching.

A flock of birds are silhouetted against the setting sun over the Yellow River Delta. [Photo/VCG]

Birds glide across the clear blue sky above the wetlands. [Photo/VCG]

Birds rest peacefully amid the wetlands of the Yellow River Delta. [Photo/VCG]

Flocks of birds gather and rest in the Hongtan Wetland, creating a tranquil natural scene. [Photo/VCG]