Swallows are no longer migrating the 6,000 miles to South Africa and are staying in Britain over winter amid milder temperatures thanks to climate change, study reveals

Swallow photo by Mark Robinson under creative commons

Daily Mail reports traditionally swallows head south at the end of summer because the European winter is too cold for the flying insects on which they feed. (…) But with the run of mild winters in recent years a small number of swallows have been able to attempt to spend the winter months here.