Global warming has been taking a deadly toll on seabirds, which have been declining due to heatwaves, atmospheric extremes, the lack of reproduction and insufficient fish feed.
Climate-related losses have hit albatrosses off the Hawaiian islands, gannets close to the British Isles and puffins outside the West Coast.
Some birds are less adept at breeding nests and raising young as sea levels rise while others cannot find fish to eat as the island’s ocean warms, researchers found.
The loss of feeding fish and plankton led to the mass extinction of birds like the Cassin Auklet, which have washed ashore in their tens of thousands on the Pacific coast over the past few years.
But, according to a recent assessment by researchers from the University of British Columbia, seabird populations have fallen by 70% since the middle of the twentieth century.