A study of 42 rare bird species showed that southern European species, such as the Dartford warbler, had become more common in Britain from 1980 to 2004.
"The species are almost certainly responding to the changing climate," co-author Brian Huntley, from the UK’s Durham University, told
Reuters.
Birds and butterflies are the first species to adapt to climate change, the report said, because they can fly long distances to seek
cooler temperatures. Scientists said they represent the vanguard of likely huge shifts in a ranges of plants and animals.
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