A million seabirds that died along the US west coast were probably the victims of an unprecedented marine heatwave in the Pacific. Such events are expected to become more frequent due to climate change.
About 62,000 common murres (Uria aalge) washed ashore from summer 2015 to spring 2016 between Alaska and California, most having apparently starved. Researchers extrapolate that this means around a million died in total.
Read more: https://www.newscientist.com/article/2229980-marine-heatwave-known-as-the-blob-killed-a-million-us-seabirds/#ixzz6BCP0lW6S