广西沿海红树林区的水鸟

广西沿海地区位于一条重要的候鸟迁徙通道上，那里的红树林区给为数众多的水鸟提供了繁殖、越冬和迁徙中途歇息的场所。在红树林区记录到115种水鸟。这些鸟类中，102种是候鸟，包括13种夏候鸟、64种冬候鸟、25种旅鸟，因此红树林区水鸟类的多样性表现出明显的季节性。迁徙季节水鸟的种类和数量都最多，繁殖季节则最少。黑脸瑟鹭（Platalea minor)是世界上最濒危的鸟类之一，一个越冬种群在该地区红树林中被发现。

The waterbirds of mangroves area in the coastal area of Guangxi

The coastal area of Guangxi is on an important flyway of migratory birds The mangroves there provide the stopover site, breeding and wintering habitats for the numerous migrants There are 115 waterbird species in the mangroves area, among them 102 species are migrants, including 13 species of summer migrant, 64 species of winter migrant and 25 passenger species So the waterbird species diversity shows clear seasonal change Both the number of species and population are maximum in migratory season Among the mangroves waterbirds, 11 species are protected birds of the country Blackfaced Spoonbill ( Platalea minor ) is one of the most endangered bird species in the world Mangroves areas are their important wintering habitats A wintering population has been found in the area Economic development results in some problems that let us worry about They are discussed in the paper