Wisdom, the oldest known seabird, lays an egg at 66

The world’s oldest known seabird is expecting.

The Laysan albatross known as Wisdom - a bird thought to be at least 66 years old - is incubating an egg once again, putting her on track to become the oldest breeding wild bird in the world.

Charlie Pelizza, the US Fish and Wildlife Service project leader at the Midway Atoll National Wildlife Refuge, in the middle of the North Pacific Ocean, said that Wisdom has been returning there for six decades.

“The staff was abuzz with the news that Wisdom was back and incubating,” he said.

The bird was first banded in 1956. Since 2006 she has fledged at least nine chicks, and travelled some three million miles over the course of her life.