Mar 06, 2021, 01:53 am
Wisdom, who turned 70 this year, sits on her egg at the Midway Atoll National Wildlife Refuge in November 2020.
![[Image: 1.png]](https://i.ibb.co/kgYZsWT/1.png)
She could be any of a million Laysan albatross returning each fall to Midway Atoll National Wildlife Refuge, a group of three tiny islands formed from coral reefs in the North Pacific. Here, a thousand miles north of Honolulu, scores of brilliant white seabirds dot the islands’ exposed fields, each sitting atop a single, soda can–size egg. Both males and females sport the same charcoal-smudged eyes and chocolate-brown wings, which can span six and a half feet.
But one bird stands out: Wisdom. Sporting the red ankle band Z333, she is at least 70 this year, the oldest-known wild bird in history.
Scientists already know a lot about Wisdom. They know she was banded in 1956, as part of a long-term research project that has identified more than 260,000 individual albatross since the late 1930s. They know her favorite nesting spot. And they know she laid an egg late last November, like she has done at least eight out of the past 11 years, and that it hatched into a fluffy chick on February 1.
But there’s still much about Wisdom and her species that scientists don’t know, starting with the obvious question: How long can she live?
National Geographic Explorer-in-Residence Sylvia Earle sits next to Wisdom on Sand Island, part of the Midway Atoll, in January 2012. Earle has pioneered research on marine ecosystems.
![[Image: 2.png]](https://i.ibb.co/KwBbqHk/2.png)
For the past 15 years, Plissner and his team have banded Laysan albatross chicks and recorded the band numbers of nesting albatross within a 50-by-50-meter plot, data that will eventually provide more information about their life spans. The challenge, he says, is albatross are so long-lived, that they can easily outlast their researchers.
Just as Wisdom has done. Chandler Robbins, the USFWS biologist who banded her died in 2017 at age 98.
One wise bird
It’s also likely Wisdom is older than 70; in 1956, she was conservatively estimated to be five years old, the earliest age that Laysan albatross can reach sexual maturity.
In 2002, Robbins returned to Midway and noticed an albatross with a ragged band that needed replacing. He soon realized two things: He’d banded the bird way back in 1956, and, at age 51, she was a record-breaker. Biologists at the time had pegged a Laysan albatross life span at 40 years.
For her many years evading the lethal hazards of being an albatross—dangerous tsunamis and sharks, to name a few—on top of newer threats posed by humans, such as warming seas due to climate change, plastic pollution, and fishing lines, she was given the name Wisdom.
Since then, Wisdom has become an internet darling, both at home and abroad. In Hawaii, Laysan albatross, known as mōlī, hold a prominent place in indigenous culture as a symbol of the god Lono, who represents rain and agriculture.
Her fame has drawn attention to the perils facing seabirds and Laysan albatross in particular, says Beth Flint, a Fish and Wildlife Service wildlife biologist in Honolulu.
Low-key mom
Every fall, when Laysan albatross return to Midway after months at sea to begin their next breeding season, the skies above the islands go from relatively empty to full of birds crisscrossing over turquoise lagoons, their long, slender wings outstretched.
Approximately 70 percent of the global Laysan albatross population, estimated at 1.6 million individuals, nest at Midway, a two-square-mile World War II military base turned national wildlife refuge. Biologists counted about 492,000 nests in 2020, a slight uptick from the previous year.
Each Laysan albatross pair creates a nest cup in the earth by scraping twigs, leaves, and sand in a circle approximately three feet in diameter. After the female lays a single egg, the pair shares parenting duties, taking turns foraging for days and weeks at a time to feed their chick a regurgitated slurry of fish and squid.
Wisdom's newest chick, which hatched February 1, nuzzles with its father, Wisdom's current mate, Akeakamai.
![[Image: 3.png]](https://i.ibb.co/1b9VXCL/3.png)
Chicks take their first flight to sea in midsummer, not returning to land for three to five years. Then they’ll come and go for another few years, performing elaborate courtship dances in search of a mate, with whom they’ll form a long-term bond.
Wisdom has also outlived several mates. Her personality, Plissner says, is fairly low-key, just what you’d expect of an experienced mom who’s laid upward of 40 eggs in her lifetime.
Filling in the gaps
To better manage the threats and conserve the species for the long-term, scientists need more data on Laysan albatross and their behaviors.
The seabirds are easy to study when they’re on land—they’re big, nest on the ground, and don’t hide. But they’re most at home at sea, far from the probing eyes of researchers.
That’s where new technology comes in. Biologists are now using a variety of satellite-equipped tags that attach either to the backs of the birds’ feathers or to the bands around their ankles, providing specific data about where the birds are flying.
Such tags have revealed that breeding Laysan albatross forage way beyond the Hawaiian Islands, sometimes as far north as Alaska’s Aleutian Islands, says Rob Suryan, a marine ecologist studying seabirds at the National Oceanic and Atmospheric Administration’s Alaska Fisheries Science Center in Juneau.
Some tags even include accelerometers, which can track flight mechanics—wing flaps, flight speed, and duration, he says. Such data has revealed, among other things, how the birds are able to efficiently soar over the ocean for such long periods of time.
Another big unknown is what happens to an albatross chick once it flies the nest, Suryan says. Does it come back to the same colony as its parents, for instance?
https://www.nationalgeographic.com/anima...gedin=true
She could be any of a million Laysan albatross returning each fall to Midway Atoll National Wildlife Refuge, a group of three tiny islands formed from coral reefs in the North Pacific. Here, a thousand miles north of Honolulu, scores of brilliant white seabirds dot the islands’ exposed fields, each sitting atop a single, soda can–size egg. Both males and females sport the same charcoal-smudged eyes and chocolate-brown wings, which can span six and a half feet.
But one bird stands out: Wisdom. Sporting the red ankle band Z333, she is at least 70 this year, the oldest-known wild bird in history.
Quote:“I always have a sense of relief when Wisdom shows up,” says Jon Plissner, a U.S. Fish and Wildlife Service biologist who studies albatross longevity on Midway.
Scientists already know a lot about Wisdom. They know she was banded in 1956, as part of a long-term research project that has identified more than 260,000 individual albatross since the late 1930s. They know her favorite nesting spot. And they know she laid an egg late last November, like she has done at least eight out of the past 11 years, and that it hatched into a fluffy chick on February 1.
But there’s still much about Wisdom and her species that scientists don’t know, starting with the obvious question: How long can she live?
Quote:“We really have no idea,” says Plissner. “We also don’t know if she’s the exception. She’s probably just the oldest one we know about.”
National Geographic Explorer-in-Residence Sylvia Earle sits next to Wisdom on Sand Island, part of the Midway Atoll, in January 2012. Earle has pioneered research on marine ecosystems.
For the past 15 years, Plissner and his team have banded Laysan albatross chicks and recorded the band numbers of nesting albatross within a 50-by-50-meter plot, data that will eventually provide more information about their life spans. The challenge, he says, is albatross are so long-lived, that they can easily outlast their researchers.
Just as Wisdom has done. Chandler Robbins, the USFWS biologist who banded her died in 2017 at age 98.
One wise bird
It’s also likely Wisdom is older than 70; in 1956, she was conservatively estimated to be five years old, the earliest age that Laysan albatross can reach sexual maturity.
In 2002, Robbins returned to Midway and noticed an albatross with a ragged band that needed replacing. He soon realized two things: He’d banded the bird way back in 1956, and, at age 51, she was a record-breaker. Biologists at the time had pegged a Laysan albatross life span at 40 years.
For her many years evading the lethal hazards of being an albatross—dangerous tsunamis and sharks, to name a few—on top of newer threats posed by humans, such as warming seas due to climate change, plastic pollution, and fishing lines, she was given the name Wisdom.
Since then, Wisdom has become an internet darling, both at home and abroad. In Hawaii, Laysan albatross, known as mōlī, hold a prominent place in indigenous culture as a symbol of the god Lono, who represents rain and agriculture.
Her fame has drawn attention to the perils facing seabirds and Laysan albatross in particular, says Beth Flint, a Fish and Wildlife Service wildlife biologist in Honolulu.
Low-key mom
Every fall, when Laysan albatross return to Midway after months at sea to begin their next breeding season, the skies above the islands go from relatively empty to full of birds crisscrossing over turquoise lagoons, their long, slender wings outstretched.
Approximately 70 percent of the global Laysan albatross population, estimated at 1.6 million individuals, nest at Midway, a two-square-mile World War II military base turned national wildlife refuge. Biologists counted about 492,000 nests in 2020, a slight uptick from the previous year.
Each Laysan albatross pair creates a nest cup in the earth by scraping twigs, leaves, and sand in a circle approximately three feet in diameter. After the female lays a single egg, the pair shares parenting duties, taking turns foraging for days and weeks at a time to feed their chick a regurgitated slurry of fish and squid.
Wisdom's newest chick, which hatched February 1, nuzzles with its father, Wisdom's current mate, Akeakamai.
Chicks take their first flight to sea in midsummer, not returning to land for three to five years. Then they’ll come and go for another few years, performing elaborate courtship dances in search of a mate, with whom they’ll form a long-term bond.
Wisdom has also outlived several mates. Her personality, Plissner says, is fairly low-key, just what you’d expect of an experienced mom who’s laid upward of 40 eggs in her lifetime.
Quote:“She spends a lot of her time sleeping at the nest,” Plissner says. “We have to put a marker by her, because she does not stand out otherwise and fits in with the rest of the community.”
Filling in the gaps
To better manage the threats and conserve the species for the long-term, scientists need more data on Laysan albatross and their behaviors.
The seabirds are easy to study when they’re on land—they’re big, nest on the ground, and don’t hide. But they’re most at home at sea, far from the probing eyes of researchers.
That’s where new technology comes in. Biologists are now using a variety of satellite-equipped tags that attach either to the backs of the birds’ feathers or to the bands around their ankles, providing specific data about where the birds are flying.
Such tags have revealed that breeding Laysan albatross forage way beyond the Hawaiian Islands, sometimes as far north as Alaska’s Aleutian Islands, says Rob Suryan, a marine ecologist studying seabirds at the National Oceanic and Atmospheric Administration’s Alaska Fisheries Science Center in Juneau.
Quote:“What makes Wisdom a remarkable role model for seabird conservation is learning how far she flies to get food for her chick,” Suryan says.
Some tags even include accelerometers, which can track flight mechanics—wing flaps, flight speed, and duration, he says. Such data has revealed, among other things, how the birds are able to efficiently soar over the ocean for such long periods of time.
Another big unknown is what happens to an albatross chick once it flies the nest, Suryan says. Does it come back to the same colony as its parents, for instance?
https://www.nationalgeographic.com/anima...gedin=true