Birds native to Europe are on average less colorful now than observed 15 years ago, according to a new study that suggests the climate crisis could be behind the change.
Researchers, including those from the University of the Basque Country in Spain, assessed two populations of blue tits in southern France, one located on the outskirts of Montpellier and the other in the island of Corsica over a 15-year period from 2005 to 2019, The Guardian reported.
