A number of popular beaches in Australia have been found strewn with thousands of dead puffin larvae.
Several states reported mass bird deaths.
Alarming news has come from Eastern Australia, The Guardian reports.
Beaches in New South Wales, Queensland and Victoria have been littered with bird carcasses, terrifying beachgoers.
Experts cannot say exactly how many birds have washed up dead on the shore, but the number is in the thousands.
Experts noted that the birds were severely emaciated.
Therefore, scientists have put forward a theory that the petrels did not have enough food. They were poorly prepared for the long flight and became exhausted on the way.
The petrels literally fell dead into the sea, and then their bodies washed up on the east coast of Australia, experts suggest.
But this is only a hypothesis. The exact reasons still need to be determined, the experts concluded.