bird ringing 鸟类环子
The ringing is just the first step in trying to understand a bird about which almost nothing is known.
上脚环是试图了解一种不知名的鸟所要做的第一步。
It is an important place for study on protected migrants with two bird Banding stations and 265228 ringing migrant birds of 176 species.
有鸟类环志站两处，环志候鸟176种，265228只，是我国候鸟保护研究的重要基地。
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