1, Yangzhou Chengbei Fishing Ground is famous as a bird paradise. Since autumn, many winter migratory birds from the north have migrated here to live, including winter migratory birds, black-winged long-legged snipes, cranes and herons, as well as some summer migratory birds and little egrets.

2. When a flock of red-billed birds appear in gaoyou lake, it means that the migration of migratory birds has ended. This red-billed bird is the red-billed gull. Usually, they are the last winter migratory birds to arrive in Yangzhou.

3. Red-billed gull is a very recognizable bird. This kind of waterfowl likes to prey on small fish in groups on the water. Its most striking and unforgettable image is its red mouth.