New research using data from Garden BirdWatch has revealed that bird food provided in British gardens has helped Blackcaps to rapidly evolve a successful new migration route. This is the first time that garden bird feeding has been shown to affect large-scale bird distributions. The research uses data from volunteer Garden BirdWatchers.

Click here to read the rest of the article.: Garden bird feeding and a changing climate are driving evolutionary change in Blackcaps | BTO – British Trust for Ornithology