|
Bird Tables Changing Evolution |
Britain's love of bird tables may be interfering with evolution, according to a new study which suggests the feeders are changing the migratory habits and even the shape of some bird species.
One type of warbler known as the Blackcap is increasingly wintering in England instead of the Mediterranean after being drawn here by the abundance of food in gardens, the researchers claim.
And because their migration is much shorter and their food source different, this is having a profound effect on their bodies - reducing the size of their wings and beaks.
Read more ...
|
