Consecutive cold, wet summers, the worst conditions in almost two decades, have set back recovery, with the number of males dropping from 1, 200 to 850.
近二十年来夏季持续朝湿寒冷，这种最恶劣的气候条件破坏了黑琴鸡的繁衍生息，特别是雄鸟的数量从1200只减少到850只。
Consecutive cold, wet summers, the worst conditions in almost two decades, have set back recovery, with the number of males dropping from 1, 200 to 850.
近二十年来夏季持续朝湿寒冷，这种最恶劣的气候条件破坏了黑琴鸡的繁衍生息，特别是雄鸟的数量从1200只减少到850只。
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