More shearwaters are washing up dead on Australian beaches. It's not due to 'natural' causes

You might know the short-tailed shearwater and sable shearwater by the common name “muttonbirds.” These two species of seabird breed on islands off southeastern Australia. Both undertake a breathtaking two-week, non-stop flight across the Pacific to the Bering Sea, more than 10,000 km away near Alaska and Russia. Here, they spend the northern summer.