19世纪90年代对麻鸦的担忧引导了一场紧锣密鼓的物种挽回项目，主要是繁殖，改善研究和栖息地环境。
Concern for the bittern in the 1990s led to an intensive species-recovery programme, with research and habitat improvement and creation playing major roles.
19世纪90年代对麻鸦的担忧引导了一场紧锣密鼓的物种挽回项目，主要是繁殖，改善研究和栖息地环境。
Concern for the bittern in the 1990s led to an intensive species-recovery programme, with research and habitat improvement and creation playing major roles.
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