Bird species' colour fading because of climate change 

'In these birds, traits such as colouring function as signals to indicate to other individuals the quality of the specimen, which are decisive, for example, when it comes to breeding.'

Bird communities will be lost to various regions around the world by 2080, while species such as blue tits are already changing colour in the past two decades, due to climate change.

Those are the findings of two separate studies on birds by British and European researchers, signalling the acceleration of the biodiversity crisis as the world changes due to human-induced global warming.