Climate risks greater for long-distance migratory birdsBy Mark Kinver, Science and environment reporter, BBC News
Birds embarking on long-distance migrations are more vulnerable to shifts in the climate than ones making shorter journeys, a study suggests.
Scientists say the increasingly early arrival of spring at breeding sites in Europe makes it harder for the birds to attract a mate or find food.
The researchers warn that the "increasing ecological mismatch" can lead to a decline in bird populations.
The findings appear in the journal Proceedings B of the Royal Society...
http://www.bbc.co.uk/news/science-environment-11408439
