At age 74, Wisdom, the oldest known wild bird in the world, was still able to lay an egg.

This was revealed by American biologists who hve been filming the Laysan albatross at the Midway Atoll national wildlife refute in the Pacific.

Biologists from the US Fish and Wildlife Service (USFWS) has been observing Wisdom and her current mate taking care of the egg laid recently.

Wisdom was tagged in 1956 when she was estimated to be around five years old.

She is the oldest known wild bird who belong to species taht typically live between 12 to 40 years old.

Throughout her lifetime, Wisdom is believed to have hatched 30 chicks. Her most recent offspring hatched three years ago.