WWF says many of the inland and coastal wetland areas where waterbirds stop off during their annual migration have been lost or impacted by factors such as pollution and reclamation.

• 世界自然基金会表示,水鸟迁徙途径的众多内陆及沿海湿地都已经消失,或受到诸如环境污染,及填海等问题破坏。