Partly this reflects climate change, suggests Simon Gillings of the BTO.

英国鸟类研究信托公司的西蒙·格林斯认为这部分反映了气候变化。

But data released by the British Trust for Ornithology (BTO), a research charity, suggest some are soaring.

但是公益性科研机构英国鸟类学基金会公布的数据显示，有一些鸟类的数量却扶摇而上。

But new data from the British Trust for Ornithology (BTO), a research charity, hints at the growth of another north-south divide—this time to the north's benefit.

但慈善研究机构英国鸟类研究信托公司提供的新数据表明，在另一种形式增大的南北分歧中，北部地区获益较大。