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Birds fly north in climate change vanguard -study

(Agencies)
Updated: 2008-07-30 17:27

OSLO  -- Birds have been moving north in Europe over the past 25 years because of climate change in the vanguard of likely huge shifts in the ranges of plants and animals, scientists said on Wednesday.

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A study of 42 rare bird species in Britain showed that southern European bird species such as the Dartford warbler, Cirl bunting, little egret or Cetti's warbler had become more common in Britain from 1980-2004.

And species usually found in northern Europe, such as the fieldfare, redwing or Slavonian grebe, had become less frequent in Britain.

"The species are almost certainly responding to the changing climate," said Brian Huntley of Durham University in England of a report he wrote with researchers at Cambridge University and the Royal Society for the Protection of Birds.

The study tried to filter out other factors that would affect counts of rare birds, including growing public interest that could mean more sightings. Shifts in farming, pollution, expansion of cities and conservation efforts have all affected wildlife.

Birds and butterflies are among the first to adapt to climate change because they can fly long distances to seek a cooler habitat. Other creatures and plants can take far longer if their traditional range gets too warm.

"It depends on the mobility of the species. Birds and butterflies are two of the groups where there is the best evidence that species are already showing responses to the changing climate," Huntley told Reuters of the study in Royal Society journal Biology Letters.

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