Working out bird migration patterns was one of the triumphs of natural history.
找出鸟类迁移规律才是自然学史上无数可嘉可贺的成就之一。
Bird banding is one of the important means to research the seasonal migration of birds, and is an effective method in researching the faunas, ecology and morphology of birds.
环志是研究鸟类季节性迁徙的重要手段之一，同时也是研究鸟类区系、生态学、形态分类学等的有效方法。
John:We've been able to learn a lot of new things about bird migration, especially about how fast and how far birds move.
我们获取了很多新的信息，特别是鸟的飞行速度和距离。
John:We've been able to learn a lot of new things about bird migration, especially about how fast and how far birds move.
我们获取了很多新的信息，特别是鸟的飞行速度和距离。
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