It is a direct consequence of global warming, according to the French scientists who led this research., the study was carried out between 2005 and 2019 in the south of France by scientists from the UPV/EHU-University of the Basque Country and the Centre d’écologie fonctionnelle et évolutive in Montpellier.
But, over the course of their 15-year observation, the scientists noted a clear decrease in coloration in the two populations of birds studied. It is a change that the authors of the research associate directly with climate change. These changes have not only aesthetic consequences, warns the scientist, as they can also disturb the mating patterns of these birds.
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