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Siberian swans return to a thawed Yellow River wetland

The first whooper swans from Siberia have arrived at a Yellow River wetland between Shanxi and Henan provinces, opening a winter season that in recent years has drawn more than 10,000 of the white birds to a stretch of water that was not always so welcoming.

The wetland in Pinglu County, in northern China’s Shanxi, covers more than 6,000 hectares where the river bends through mountainous terrain. Its relatively mild winter climate, shallow water and underwater plants make it a dependable stop for swans fleeing the freezing marshes further north.

The gathering has become a seasonal marker. Families of swans feed in the open water and rest on sandbars, their numbers climbing through November as more flocks cross from Russia. Local conservation workers patrol the area, supplement food when ice covers the shallows and keep visitors at a distance.

That the birds return in such numbers is itself a sign of recovery. Parts of the Yellow River, known in Chinese as the mother river, were badly degraded by industrial discharge, sand mining and reclamation during decades of rapid growth. Wetlands shrank and water quality in many stretches fell sharply.

Years of cleanup, restrictions on shoreline development and dedicated nature reserves have changed the picture along sections of the river. Pinglu’s annual swan count is treated as one visible measure of that work, alongside returning fish stocks and other waterbirds.

Conservation staff now run feeding stations, fixed observation platforms and daily patrols, and local schools treat the swans’ arrival as an annual lesson in wetlands ecology. Birdwatchers must stay in designated areas, a rule enforced more gently than in years past but enforced nonetheless. Whooper swans are listed as a second-class protected species in China, and harming one carries criminal penalties, part of a wildlife law overhaul that has steadily raised the cost of poaching and habitat disturbance.

The swans are part of a much larger migration system. Whooper swans breeding across northern Eurasia fan out each autumn to ice-free waters across East Asia, and the Yellow River wetlands sit on one of the continent’s busiest flyways. For the riverside towns now hosting them, the birds have also become a quieter kind of winter economy, drawing birdwatchers and photographers long after the summer tourist season ends.

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未经允许不得转载:Dgcity » Siberian swans return to a thawed Yellow River wetland

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