She’s back.

The oldest known bird to lay an egg and raise a chick landed over Thanksgiving weekend at Midway Atoll National Wildlife Refuge in the Pacific Ocean, apparently to do it again, at age 64.

Her name is Wisdom, but it should probably be Ancient Wisdom, because she apparently knows things that scientists don’t. “It continues to just blow our minds,” said Bruce Peterjohn, chief of the Bird Banding Laboratory at the USGS Patuxent Wildlife Research Center in Laurel, Maryland.

Here’s why Wisdom’s accomplishments are mind-boggling, and why she’s a celebrity among bird scientists and watchers.

First, she’s not even expected to live much more than half this long. So it stands to reason that mothers in the Laysan albatross species such as Wisdom’s usually fall out of the hatchling rearing business decades before. Albatross aren’t the world’s oldest birds. Parrots in captivity have lived to age 80, but they didn’t lay eggs.

The oldest albatross other than Wisdom to lay an egg was Grandma of the Northern Royal species at age 61. Grandma hasn’t been seen at her nesting ground at Taiaroa Head, New Zealand, in five years and is presumed dead.

On top of all that, albatrosses face threats from pollution that kill them each year by the hundreds. Parents are known to frequently feed human-produced plastics to chicks by mistake, blocking their wind pipes and filling their little bellies with deadly junk.

Nineteen of 21 albatross species are threatened with extinction, and their demise might be linked directly to humans.

Wisdom has soared above these problems, taking new mates as old ones succumb to age or a death more grisly. “We’re learning what these birds are capable of doing at what we consider to be an advanced age,” Peterjohn said. “She lays her eggs and raises her chicks. Common sense says at some point she would become too old for this.”

Her backstory is incredible. Wisdom has raised chicks six times since 2006, and as many as 35 in her life, according the U.S. Geological Survey. Since the day she was first tagged in 1956 at Midway Atoll, the end of the Hawaiian Island chain, she has likely flown up to 3 million miles. Do the math, the USGS said. That’s “4 to 6 trips from the Earth to the Moon and back again with plenty of miles to spare.”

“It is very humbling to think that she has been visiting Midway for at least 64 years,” Deputy Refuge Manager, Bret Wolfe, said. “Navy sailors and their families likely walked by her not knowing she could possibly be rearing a chick over 50 years later. She represents a connection to Midway’s past as well as embodying our hope for the future.”

The man who first placed a band over her webbed foot, Chandler Robbins, did so when he was in his 40s. Still working at the atoll nearly 40 years later in 2001, he picked up a bird among the quarter-million that nest there and found a signature on its tag that he recognized – his own. He was 81.