此时，鹭类又搬迁破坏新的鹭林。
鹭类在大屿岛上的繁殖也具明显的垂直分布现象。
The colonial breeding ardeids also showed the vertical distribution.
结果表明：鹭类在大屿岛繁殖时，具有明显的水平分布特征。
The results show that there is a horizontal distribution in colonial breeding Ardeidae.
对水鸟群落进行了周年观察，按鸭科、鹭科、鸻鹬类等类群分析其季节性动态。
Analysis about the seasonal dynamic of avian community by groups, such as Herons, Ducks and Shorebirds.
鹭科鸟类是湿地生态系统中重要的生物种类之一，也是环境质量评价的一类指示动物。
Ardeidae bird is one of important species belonging to wet land ecosystem, and regarded as indicator for environmental assessment.
牛背鹭主要取食蜘蛛、蝗虫、蟋蟀和蛙类。
The food of cattle egret was mostly spider, locust, cricket and frog.
牛背鹭主要取食蜘蛛、蝗虫、蟋蟀和蛙类。
The food of cattle egret was mostly spider, locust, cricket and frog.
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